Oh, let me tell you about my absolute go-to breakfast lifesaver – this Bisquick breakfast casserole! I discovered this gem years ago when my sister showed up unannounced with six hungry college friends in tow. Panic? Not with this recipe in my back pocket. Twenty minutes of prep, one messy bowl (okay, maybe two), and voila – golden, cheesy perfection that feeds a crowd.

Table of Contents
Table of Contents
Why You’ll Love This Bisquick Breakfast Casserole
What I love most is how forgiving it is. Sleepy-eyed morning you can dump everything together without measuring perfectly and it still turns out amazing. The Bisquick mix works its magic, creating this wonderful texture somewhere between fluffy eggs and savory bread pudding. And that crispy top? Pure breakfast heaven. Whether it’s Christmas morning or just a regular Tuesday, this casserole never fails to disappear fast.
Trust me, this recipe is about to become your new best friend in the kitchen. Here’s why:
- So darn easy: Just mix, pour, and bake – perfect for those mornings when you’re barely awake.
- Feeds everyone: Hungry houseguests? No problem. This casserole comfortably serves a crowd.
- Totally flexible: Use whatever cheese, veggies, or protein you have on hand. It’s hard to mess up!
Seriously, it’s the ultimate no-fuss breakfast that always gets rave reviews.
Ingredients for Bisquick Breakfast Casserole
Here’s everything you’ll need to make this magical breakfast dish – and yes, I’ve tested all these measurements dozens of times to get it just right:
- 1 lb Breakfast Sausage – I prefer the spicy kind, but mild works great too (see substitutions below)
- 6 large Eggs – beaten until they’re smooth and uniform in color
- 1 cup Milk – whole milk gives the richest flavor, but any kind works
- 2 cups Bisquick Mix – the star ingredient that makes this so easy!
- 2 cups Shredded Cheddar Cheese – freshly grated melts better than pre-shredded
- 1 teaspoon Salt – adjust based on how salty your sausage is
- 1 teaspoon Black Pepper – freshly cracked gives the best flavor
- Optional flavor boosters: 1 tsp each onion powder & garlic powder, 1 cup diced bell peppers, 1 cup diced onions
Ingredient Substitutions & Notes
This recipe is wonderfully adaptable – here are my favorite swaps:
- Meat: Turkey sausage works beautifully, or go vegetarian with meatless crumbles
- Dairy-free: Use plant-based milk and dairy-free cheese (I like almond milk with Violife cheddar)
- Gluten-free: Swap Bisquick for gluten-free pancake mix (Bob’s Red Mill works great)
- Veggies: Mushrooms, spinach, or tomatoes make tasty additions – just sauté them first to remove excess moisture
- Spice lovers: Add a pinch of cayenne or red pepper flakes to the egg mixture
The key is keeping the wet-to-dry ratios the same – beyond that, make it your own!

How to Make Bisquick Breakfast Casserole
Okay, let’s get cooking! This is so simple you’ll have it memorized after the first try. First things first – crank that oven to 375°F (190°C) and grab your trusty 9×13-inch baking dish. Give it a quick greasing – I like to use butter for extra flavor, but cooking spray works in a pinch.
Now, brown that sausage in a skillet over medium heat. You’ll know it’s ready when those little crumbles turn from pink to golden brown – about 5-7 minutes should do it. While that’s cooking, whisk together the eggs, milk, Bisquick, and seasonings in a big bowl. Don’t overmix – just get everything combined with no big lumps of Bisquick left.
Here comes the fun part – layering! Spread the sausage evenly in your baking dish, then sprinkle on the cheese (and any veggies if you’re using them). Pour that beautiful Bisquick mixture over everything – it’ll look like magic as it seeps into all the nooks and crannies. Pop it in the oven and bake for 35-40 minutes. You’ll know it’s done when the center doesn’t jiggle and the top turns a gorgeous golden brown. Let it rest for 5 minutes – I know it’s hard to wait, but this helps it set perfectly for slicing!
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Irresistible Bisquick Breakfast Casserole in 20 Minutes
- Prep Time: 15 minutes
- Cook Time: 40 minutes
- Total Time: 55 minutes
- Yield: 8 servings 1x
- Category: Breakfast
- Method: Baking
- Cuisine: American
- Diet: Low Lactose
Description
A hearty and easy-to-make breakfast casserole using Bisquick mix, perfect for feeding a crowd or meal prepping.
Ingredients
- 1 lb Breakfast Sausage (substitute with turkey sausage or vegetarian options)
- 6 large Eggs, beaten until smooth
- 1 cup Milk (plant-based milk can be used for a lighter version)
- 2 cups Bisquick Mix (other pancake or biscuit mixes may be used)
- 2 cups Shredded Cheddar Cheese (swap for mozzarella or dairy-free cheese)
- 1 teaspoon Salt (adjust based on dietary needs)
- 1 teaspoon Black Pepper (omit for a milder dish)
- 1 teaspoon Onion Powder (optional, fresh onions can be used)
- 1 teaspoon Garlic Powder (optional, fresh garlic can be used)
- 1 cup Diced Bell Peppers (optional, any color pepper works)
- 1 cup Diced Onions (optional, omit for a simpler flavor profile)
Instructions
- Preheat the oven to 375°F (190°C) and grease a 9×13-inch baking dish.
- In a skillet over medium heat, cook the breakfast sausage until browned, about 5-7 minutes.
- In a large mixing bowl, whisk together the eggs, milk, Bisquick mix, salt, black pepper, and any optional seasonings until smooth.
- Evenly spread the cooked sausage in the baking dish, layer with shredded cheese and any optional vegetables, then pour the Bisquick mixture over everything.
- Bake for 35-40 minutes until the center is set and the top is golden brown. Allow to cool for 5 minutes before slicing.
Notes
- For a crispier top, broil for the last 2-3 minutes of baking.
- Store leftovers in an airtight container in the fridge for up to 3 days.
- Reheat in the oven or microwave before serving.
Nutrition
- Serving Size: 1 slice
- Calories: 320
- Sugar: 3g
- Sodium: 780mg
- Fat: 18g
- Saturated Fat: 7g
- Unsaturated Fat: 8g
- Trans Fat: 0g
- Carbohydrates: 22g
- Fiber: 1g
- Protein: 16g
- Cholesterol: 185mg
Tips for Perfect Bisquick Breakfast Casserole
After making this dozens of times, here are my foolproof tips:
- Crispy top lover? Broil for the last 2-3 minutes – just watch it like a hawk!
- Resist overmixing – a few small lumps in the batter are better than developing too much gluten.
- The toothpick test never lies – if it comes out clean from the center, you’re golden.
- Let it rest! Those 5 minutes make slicing so much cleaner.
- Morning shortcut? Prep everything the night before and just pop it in the oven – genius!

Serving Suggestions for Bisquick Breakfast Casserole
Now for the best part – serving this beauty up! I love slicing it into big squares (about 8 servings) for a hearty breakfast. For brunch crowds, cut smaller portions – it’s so rich, a little goes a long way. My must-have accompaniments? A big bowl of fresh berries or melon to balance the richness, and definitely hot sauce for those who like a kick (Cholula is my fave).
Oh, and don’t forget the avocado slices! That creamy texture is magic with the cheesy casserole. For extra fancy points, set up a toppings bar with salsa, sour cream, and chopped green onions – let everyone customize their plate!
Storage & Reheating Instructions
Okay, let’s talk leftovers – because this casserole keeps like a dream! I always make extra since it reheats so beautifully. Just let it cool completely, then pop it in an airtight container in the fridge. It’ll stay fresh for 3 days – though in my house, it never lasts that long!
When you’re ready for round two, here’s how I do it: For that just-baked texture, reheat slices in a 350°F oven for about 10 minutes. If you’re in a hurry (hello, weekday mornings!), the microwave works too – just cover with a damp paper towel and zap for 30-60 seconds. Want to freeze it? Cut into portions, wrap tight in foil, and freeze for up to 2 months. Thaw overnight in the fridge before reheating – perfect for emergency breakfasts!
Bisquick Breakfast Casserole FAQs
I get so many questions about this recipe – let me answer the ones that pop up most often!
Can I make this casserole ahead of time?
Absolutely! Assemble everything the night before (just hold off on baking), cover tightly, and refrigerate. In the morning, let it sit at room temp while the oven preheats, then bake as usual – you might need 5 extra minutes since it’s cold.
What if I don’t have Bisquick?
No worries! For every cup of Bisquick, use: 1 cup flour + 1½ tsp baking powder + ¼ tsp salt + 1 Tbsp shortening or butter. But honestly? The real magic happens with Bisquick – it’s worth keeping a box in your pantry.
What makes this a casserole and not a quiche?
Great question! The Bisquick creates more of a bread-like texture compared to quiche’s custard base. Plus, true casseroles bake in one dish – no crust needed. It’s the ultimate lazy cook’s breakfast!
Why does mine come out dry sometimes?
Two likely culprits: overbaking (set a timer!) or using skim milk. Whole milk or even half-and-half keeps it ultra-moist. And remember – the casserole keeps cooking a bit after you pull it out, so don’t wait until it’s completely firm.

Nutritional Information
Now, let’s chat about the nutrition stuff – but keep in mind, these numbers can change based on the exact ingredients and brands you use. Here’s the scoop per serving (about 1/8th of the casserole):
- Calories: Around 320 – filling without being too heavy
- Protein: 16g – thanks to all those eggs and sausage!
- Carbs: 22g – the Bisquick gives it that perfect structure
- Fat: 18g (7g saturated) – what makes it taste so darn good
Want to lighten it up? Try turkey sausage, reduced-fat cheese, and almond milk – but I say life’s too short not to enjoy the full-flavor version sometimes!
Share Your Feedback
I’d love to hear how your Bisquick breakfast casserole turns out! Did your family devour it like mine always does? Any creative twists you tried? Drop me a comment below or tag me on Instagram with your masterpiece – nothing makes me happier than seeing your kitchen successes. Happy baking, friends! You can also follow along for more great recipes at Grandma and Me Cooking.