Breakfast Casserole with Crescent Rolls (Easy, High Protein Brunch Bake)

Why You'll Love This Recipe

• Easy to pull together: Everything bakes in one pan, so you're not stuck juggling multiple dishes first thing in the morning.
• High protein meets comfort food: The mix of egg whites, eggs, and turkey sausage keeps it balanced without losing that classic casserole feel.
• Perfect for brunch, holidays, or meal prep: You can serve it fresh, make it ahead, or reheat it during the week.

Looking for more brunch ideas? Add something sweet like lemon French toast or keep it fun with McGriddle pancake muffins and savory ham and cheese egg bites. 

Ingredients for Crescent Roll Breakfast Casserole

This family favorite breakfast casserole recipe keeps things simple and delicious!

• Refrigerated crescent roll dough: This creates that soft, buttery base. When pressing it into the pan, take an extra minute to seal all the seams so the egg mixture doesn't seep through and make the bottom soggy.
• Breakfast turkey sausage: A great way to keep this casserole lighter while still packing in flavor. Look for one with simple ingredients and good seasoning so you don't have to add much else. If swapping in pork sausage, drain it well to avoid excess grease.
• Egg whites + whole eggs: This combo gives you the best of both worlds aka more protein from the egg whites and flavor + structure from the whole eggs. 
• Milk: Helps create that soft, custardy texture instead of dry eggs. Whole milk gives a richer result, but any milk works. 
• Shredded cheese: Helps bind everything together and gives that classic casserole bite. For the best melt, shred your own cheese if you have time.
• Ranch seasoning: This is your shortcut to flavor! It adds herbs, salt, and seasoning all in one, so you don't need a long spice list. You can adjust the amount based on preference.
• Dijon mustard: A small addition that adds depth and keeps the flavor from falling flat. You won't taste it directly, but it balances everything out.

See the recipe card below for the full list of ingredients and measurements.

Substitutions & Variations

There's plenty of room to make this your own depending on what you're craving.

• Swap the turkey sausage for pork sausage, chicken sausage, or cooked bacon for a different flavor.
• Go with all whole eggs if you want that classic, cozy casserole texture that feels a little more indulgent.
• Add vegetables like spinach, bell peppers, mushrooms, or onions to bulk it up and add color.
• Switch up the cheese with sharp cheddar, mozzarella, or pepper jack depending on what you like.
• Add a splash of hot sauce or a pinch of red pepper flakes to bring a little heat that balances the richness. 

How to Make Breakfast Crescent Roll Casserole

Once you've got your ingredients ready, the rest is really straightforward.

Step 1: Preheat the oven to 375°F and lightly grease a 9x13 inch baking dish or line it with parchment paper.

Step 2: Press the crescent rolls into the bottom of the baking dish, pinching the seams together so it forms one even layer with no gaps. Bake for 5 minutes to give the base a head start.

Step 3: Cook the sausage in a skillet over medium heat until browned and fully cooked, breaking it into crumbles as it cooks. Drain any excess grease and set aside.

Step 4: In a large bowl, combine the milk, egg whites, whole eggs, ranch seasoning, and Dijon mustard until smooth and fully mixed.

Step 5: Sprinkle the cooked sausage evenly over the top of the partially cooked dough, followed by half of the shredded cheese.

Step 6: Pour the egg mixture over the top, making sure it spreads into all corners. Sprinkle the remaining cheese on top.

Step 7: Bake for 30-35 minutes, or until the center is set and no longer jiggly. The top should be lightly golden brown.

Step 8: Let it rest for 5-10 minutes before slicing so it holds together and slices cleanly.

Storage

If you've got leftovers, this one holds up really well.

• Refrigerator: Store leftovers in an airtight container for up to 4 days so they stay fresh and easy to grab.
• Freezer: Wrap individual slices tightly and freeze for up to 2 months, which works well for longer-term planning.
• Reheating: Warm in the microwave for quick meals or reheat in the oven at a lower temperature, loosely covered, to keep it from drying out.
• Meal prep: Slice the casserole into portions after it cools, store in individual containers, and you've got a ready-to-go breakfast that reheats well all week without losing texture.