Oh, do I have a treat for you! This sun dried tomato pasta bake has been my go-to comfort food for years – it’s like a warm hug in a bowl. I stumbled upon this recipe when my slow cooker became my kitchen BFF during those crazy busy weeks. The magic happens when those intense sun-dried tomatoes mingle with fire-roasted peppers and garlic in the slow cooker all afternoon. Trust me, your kitchen will smell like an Italian grandmother’s dream! What I love most is how the flavors deepen as everything simmers together, creating this rich, almost creamy sauce that coats every noodle perfectly. It’s become my signature potluck dish because honestly, who can resist that melted mozzarella-parmesan blanket on top?

Table of Contents
Table of Contents
Why You’ll Love This Sun Dried Tomato Pasta Bake
Let me count the ways this dish will steal your heart! First off, that slow-cooker magic means you can toss everything in and forget about it while the flavors work their delicious alchemy. Here’s what makes it special:
- Bursting with flavor: Sun-dried tomatoes pack an umami punch, while fire-roasted peppers add smoky sweetness – it’s like a flavor party in your mouth!
- Set-it-and-forget-it easy: No babysitting the stove – just layer ingredients and let your slow cooker do the heavy lifting.
- Vegetarian comfort food: Hearty enough to satisfy meat-lovers, but completely plant-based (my cousin’s vegan and adores this with dairy-free cheese).
- Leftovers taste even better: The flavors intensify overnight – if you can resist eating the whole batch at once!
Seriously, this bake checks all the boxes – simple, satisfying, and packed with that slow-cooked goodness you crave.
Ingredients for Sun Dried Tomato Pasta Bake
Gathering the right ingredients is half the battle with this recipe – and trust me, each one plays a starring role! Here’s what you’ll need to create that perfect harmony of flavors:
- The veggie dream team: 1 (15-ounce) can unsalted diced tomatoes with basil, garlic and oregano (don’t drain – that liquid is gold!), 1 (12-ounce) package frozen fire-roasted red bell peppers and onions (game-changing shortcut), and 1 (8-ounce) package sliced fresh cremini mushrooms (their earthy flavor is magic)
- The flavor bombs: 2 (3-ounce) packages sun-dried tomato halves (I splurge on the oil-packed ones when feeling fancy), 2 tablespoons sun-dried tomato pesto (our secret weapon), and 2 cups unsalted vegetable broth
- The seasoning squad: 2 teaspoons garlic powder (yes, powder – it blends better here), 1 teaspoon each dried oregano and basil, 1/4 teaspoon each salt, ground pepper, and crushed red pepper (adjust to your spice tolerance)
- The finishing touches: 1 (9-ounce) package fresh linguine (trust me, fresh makes all the difference), 5 ounces baby spinach, 1/2 cup shredded mozzarella, 1/4 cup grated Parmesan, and optional torn fresh basil for that Instagram-worthy garnish
Pro tip: Keep your cornstarch handy (1 tablespoon) – it’s our sneaky trick for thickening the sauce just right!
How to Make Sun Dried Tomato Pasta Bake
Alright, let’s get cooking! This sun dried tomato pasta bake comes together beautifully in the slow cooker, but there are a few key steps to nail that perfect texture. Don’t worry – I’ve made every mistake possible so you don’t have to!
Step 1: Prepare the Slow Cooker Mixture
First things first – grab your trusty 6-quart slow cooker (this recipe fills mine perfectly). Dump in that can of diced tomatoes with all its glorious juices – no draining here! Add the frozen peppers and onions (yes, still frozen – that’s the beauty of this recipe), sliced mushrooms, and those gorgeous sun-dried tomato halves. Now here’s my secret: whisk the cornstarch into the vegetable broth before adding it – this prevents lumps and helps thicken the sauce beautifully. Toss in all your spices – garlic powder, oregano, basil, salt, pepper, and that lovely crushed red pepper. Give it all a really good stir – I use a wooden spoon to make sure everything’s evenly distributed. The mixture will look watery now, but trust me, magic happens as it cooks!
Step 2: Cook and Add Pasta
Pop the lid on and set your slow cooker to High. Now walk away for 2 hours and 20 minutes – seriously, resist the urge to peek! When you come back, the vegetables should be fork-tender and the sauce thickened slightly. Here’s where we add the fresh linguine – break it in half if needed to fit your slow cooker. Stir gently to submerge the noodles – they’ll cook right in that flavorful sauce. Toss in the spinach last (it wilts in seconds) and give it another quick stir. Cook on High for just 10 more minutes – any longer and the pasta turns mushy (learned that the hard way!).
Step 3: Melt the Cheese
Turn off the slow cooker – this is crucial! Sprinkle that mozzarella and Parmesan evenly over the top. Now here’s where patience pays off: cover it again and let it sit undisturbed for about 5 minutes. No peeking! The residual heat melts the cheese into the most glorious golden blanket. If you’re feeling fancy, garnish with fresh basil – the bright green makes it look restaurant-worthy. Serve it right from the slow cooker for maximum ooey-gooey goodness!
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Sun Dried Tomato Pasta Bake: A 2-Hour Comfort Food Miracle
- Prep Time: 15 minutes
- Cook Time: 2 hours 30 minutes
- Total Time: 2 hours 45 minutes
- Yield: 6 servings 1x
- Category: Pasta
- Method: Slow Cooker
- Cuisine: Italian
- Diet: Vegetarian
Description
A hearty and flavorful pasta bake featuring sun-dried tomatoes, fresh vegetables, and melted cheese.
Ingredients
- 1 (15-ounce) can unsalted diced tomatoes with basil, garlic and oregano, undrained
- 1 (12-ounce) package frozen fire-roasted red bell peppers and onions
- 1 (8-ounce) package sliced fresh cremini mushrooms
- 2 (3-ounce) packages sun-dried tomato halves
- 2 cups unsalted vegetable broth
- 2 tablespoons sun-dried tomato pesto
- 1 tablespoon cornstarch
- 2 teaspoons garlic powder
- 1 teaspoon dried oregano
- 1 teaspoon dried basil
- 1/4 teaspoon salt
- 1/4 teaspoon ground pepper
- 1/4 teaspoon crushed red pepper
- 1 (9-ounce) package fresh linguine
- 5 ounces baby spinach
- 1/2 cup shredded low-moisture part-skim mozzarella cheese
- 1/4 cup grated Parmesan cheese
- Torn fresh basil leaves, for garnish (optional)
Instructions
- Combine diced tomatoes, frozen peppers and onions, mushrooms, sun-dried tomatoes, broth, pesto, cornstarch, garlic powder, oregano, basil, salt, pepper, and crushed red pepper in a 6-quart slow cooker; stir to mix well.
- Cover and cook on High for 2 hours and 20 minutes, or until the vegetables are tender.
- Stir in linguine and spinach; cook on High for 10 more minutes.
- Turn off slow cooker. Sprinkle the mixture with mozzarella and Parmesan.
- Cover and let stand until the cheese is melted, about 5 minutes.
- Garnish with basil, if desired.
Notes
- Use fresh linguine for best texture.
- Adjust crushed red pepper for desired spice level.
- Let cheese melt fully before serving.
Nutrition
- Serving Size: 1 serving
- Calories: 320
- Sugar: 8g
- Sodium: 450mg
- Fat: 10g
- Saturated Fat: 3g
- Unsaturated Fat: 5g
- Trans Fat: 0g
- Carbohydrates: 45g
- Fiber: 6g
- Protein: 14g
- Cholesterol: 15mg
Tips for the Best Sun Dried Tomato Pasta Bake
After making this dish more times than I can count, I’ve picked up some tricks that take it from good to “can I have the recipe?” amazing. First – don’t skimp on fresh linguine! Dried pasta just doesn’t soak up the flavors the same way. And about that crushed red pepper – start with 1/4 teaspoon unless you’re a heat lover (my husband always begs me to double it).
Here’s my golden rule: let the cheese melt completely before serving. Those 5 minutes of waiting make all the difference between stringy perfection and clumpy disappointment. Fresh basil garnish? Optional but oh-so-worth it – the bright pop of flavor cuts through the richness beautifully. One last secret: if your sauce seems too thin after cooking, stir in an extra teaspoon of cornstarch dissolved in cold water and let it sit for 10 minutes.

Variations and Substitutions
One of the best things about this sun dried tomato pasta bake is how easily it adapts to different tastes and diets! My neighbor swears by using gluten-free linguine – just add it a few minutes later since it cooks faster. Feeling adventurous? Toss in some roasted garlic cloves with the initial ingredients (I do this when I’m feeling fancy).
Not a spinach fan? Swap it for kale (remove those tough stems first) or even arugula for a peppery kick. I’ve used jarred artichoke hearts when mushrooms weren’t available – surprisingly delicious! For protein lovers, white beans or chickpeas blend right in. And if you’re dairy-free, nutritional yeast makes a shockingly good cheese substitute – my vegan sister taught me that trick!
Serving and Storing Sun Dried Tomato Pasta Bake
Oh, the joy of serving this beauty! I always bring the slow cooker right to the table – that melty cheese pulls are half the fun. For the full Italian trattoria experience, pair it with garlic bread (my homemade version gets dunked right into that rich sauce). A simple green salad cuts through the richness perfectly.
Now, about leftovers – if you’re lucky enough to have any! Store them in an airtight container in the fridge for up to 3 days. When reheating, I add a splash of vegetable broth to loosen the sauce and warm it gently on the stovetop. Microwave works in a pinch, but stir every 30 seconds – nobody wants dried-out pasta edges!

Nutritional Information
Here’s the scoop on what’s in each comforting serving of this sun dried tomato pasta bake (based on my exact ingredients): about 320 calories, 10g fat (3g saturated), and a solid 14g protein. You’re getting 6g fiber from all those veggies too! But heads up – nutrition varies based on your specific brands and any tweaks you make (like that extra cheese I can never resist adding). The sodium stays reasonable at 450mg per serving if you stick with unsalted broth and tomatoes like I do.
FAQs About Sun Dried Tomato Pasta Bake
Can I use dried pasta instead of fresh?
Oh honey, I’ve tried both ways – and while dried pasta works in a pinch, fresh linguine makes all the difference! The texture stays perfectly al dente as it absorbs that luscious sauce. If you must use dried, reduce the final cooking time to about 5 minutes and check often (nobody wants mushy noodles!).
How do I prevent the bottom from burning?
Great question – I learned this the hard way! Always use a slow cooker liner or give the bottom a good stir halfway through cooking. Those sun-dried tomatoes can get sticky! Also, make sure your slow cooker isn’t running too hot – if yours tends to scorch, try cooking on Low for 4 hours instead.
Can I make this ahead and reheat it?
Absolutely! In fact, the flavors get even better overnight. Just undercook the pasta slightly (stop at 8 minutes instead of 10) and store without cheese. When ready to serve, reheat in the slow cooker on Low for 20 minutes, then add cheese as directed. The spinach might lose its bright color, but the taste remains divine!

Share Your Experience
Nothing makes me happier than hearing how this sun dried tomato pasta bake turns out in your kitchen! Did you add your own twist? Maybe extra garlic (I always do!) or a different cheese? Drop a comment below – I read every one! And if you loved it as much as I do, give it a star rating so others can find this cozy recipe too. Happy cooking, friends!
You can find more delicious recipes like this on our recipes page. For more comfort food inspiration, check out our Slow Cooker Beef Potato Stew. If you’re looking for something quick, our Chicken Noodle Skillet is a winner!
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