This Bisquick Breakfast Casserole is an easy and yummy way to start your day! Packed with eggs, cheese, and your favorite meats, it’s like a warm hug on your plate.
You can whip it up quickly, and it’s perfect for feeding a crowd at breakfast. Trust me, everyone will be coming back for seconds. Who can resist cheesy goodness? 😄
Ingredients & Substitutions
Bisquick baking mix: This is the star of the recipe for a quick and easy base. If you’re gluten-free, you can find gluten-free Bisquick or use an all-purpose gluten-free baking mix. It’s just as tasty!
Breakfast sausage: I love using pork sausage for that classic flavor, but turkey sausage or even vegetarian sausage works great too! Feel free to use whatever you have on hand or prefer.
Cheddar cheese: While I usually go for sharp cheddar for its richer flavor, you can swap it with mozzarella, pepper jack, or a cheese blend. It’ll still be delicious!
Green onions: These add a fresh touch. If you don’t have them, try using chopped parsley or even diced bell pepper for a subtle crunch and color.
How Do I Ensure My Casserole Is Cooked Perfectly?
Getting the right texture in your casserole is key. Here’s how to do it:
- Start by preheating your oven properly to ensure even cooking.
- When mixing the ingredients, whisk the eggs and milk well with the Bisquick. This helps create a fluffy texture.
- Keep an eye on bake time. It should be golden brown and firm to the touch when done. If it jiggles in the center, give it a few more minutes.
- Let it rest after baking. This allows it to set and makes it easier to cut into neat squares.

How to Make Bisquick Breakfast Casserole
Ingredients You’ll Need:
Base Ingredients:
- 2 cups Bisquick baking mix
- 1 cup milk
- 6 large eggs
Flavor Add-Ins:
- 1/2 pound breakfast sausage (pork or turkey), cooked and crumbled
- 1 1/2 cups shredded cheddar cheese
- 1/4 cup chopped green onions (optional, for garnish)
Seasoning:
- Salt and pepper to taste
Others:
- Cooking spray or butter for greasing the casserole dish
How Much Time Will You Need?
You’ll need about 10 minutes to prepare the casserole and then 35 to 40 minutes to bake it. Total time is around 50 minutes, with some of that being time spent letting it cool down a bit before serving. Perfect for a hearty breakfast!
Step-by-Step Instructions:
1. Preparing the Oven and Dish:
Start by preheating your oven to 350°F (175°C). While that’s warming up, take a 9×13-inch baking dish and grease it with cooking spray or butter. This will help the casserole not stick after baking.
2. Mixing the Base:
In a large mixing bowl, whisk together the Bisquick baking mix, milk, and eggs until everything is well combined and smooth. It’s important to get out any lumps, so whisk it well!
3. Adding Flavor:
Next, fold in the cooked sausage and 1 cup of the shredded cheddar cheese into the mixture. Sprinkle a little salt and pepper to taste, ensuring the flavors are balanced. This is where all the deliciousness comes from!
4. Pouring Into the Dish:
Carefully pour the mixture into your greased baking dish, spreading it evenly so that it bakes uniformly.
5. Topping It Off:
Sprinkle the remaining 1/2 cup of shredded cheddar cheese on top of the casserole. This will create a lovely cheesy crust as it bakes.
6. Baking Time:
Place the dish in the oven and let it bake, uncovered, for about 35 to 40 minutes. You’ll know it’s ready when the top is golden brown and the casserole is set—no more jiggle in the center!
7. Cooling and Serving:
Once it’s done, take it out of the oven and allow it to cool for about 5 minutes. This helps it to firm up and makes it easier to cut. Use a sharp knife to cut it into squares.
8. Garnish and Enjoy:
If you’d like, sprinkle some chopped green onions over the top for a fresh touch. Serve it warm and enjoy a hearty breakfast!
This Bisquick Breakfast Casserole is satisfying, cheesy, and perfect for sharing with family and friends. Enjoy every bite!
Can I Use Egg Substitutes in This Recipe?
Absolutely! If you’re looking to replace the eggs, you can use flaxseed meal (1 tablespoon flaxseed meal + 2.5 tablespoons water = 1 egg) or a commercial egg replacer. Just remember that this may slightly alter the texture.
How Can I Make This Casserole Ahead of Time?
You can prepare the casserole the night before! Simply assemble it (up to step 4) and cover it tightly with plastic wrap in the fridge. In the morning, just bake it as directed, adding a few extra minutes if it’s cold from the fridge.
What Should I Serve with Bisquick Breakfast Casserole?
This casserole pairs perfectly with fresh fruit, yogurt, or a light green salad. You could also serve it with a side of crispy bacon or breakfast potatoes for a more filling meal.
How Do I Store Leftovers?
Store any leftover casserole in an airtight container in the fridge for up to 3 days. To reheat, pop it in the microwave for a quick minute or two, or warm it in the oven at 350°F (175°C) until heated through.



