caramelized onion, sausage & Cheddar breakfast casserole

What We're Cooking

Breakfast Casserole for a Friends & Family Weekend

There’s something magical about a slow morning with your favorite people — the smell of coffee, the hum of conversation, and a breakfast that brings everyone to the table. At Birdy & Pretzels, we love recipes that make those moments easier and more delicious.

A casserole that travels well

This dish is built for flexibility. You can prepare it entirely at home, pack it up, and bake it once you reach your destination. It’s hearty enough to feed a crowd and holds up beautifully during travel — making it ideal for a weekend getaway, beach weekend, or holiday visit.

The Base: Comfort and Flavor

Start with a flavorful foundation that sets this casserole apart:
Caramelized onions add a rich, savory sweetness.
Shredded hash browns because potatoes makes everything better.
Crumbled sausage provides that satisfying, hearty bite.
Sharp cheddar cheese melts into every layer, tying it all together.

This base can be assembled in advance, covered, and refrigerated overnight (or even frozen for a later trip).

Ingredients You’ll Need

1 lb Breakfast Sausage
1 Medium Yellow Onion
2 oz Salted Butter
30 oz Shredded Hash Browns
16 oz Sharp Cheddar Cheese, shredded
2 tsp salt
1 tsp Black Pepper
1/4 tsp Ground Mustard
7 Eggs
8 oz Sour Cream
8 oz Milk

How to Make It

1. Cook sausage till internal temp is 165°
2. Dice onion and sauté in skillet in butter till golden brown
3. In a bowl mix together, hash browns, sausage, onion, 10 oz cheese, 1 tsp salt and ½ tsp pepper and pour into greased 9x13 casserole pan
4. Use that same bowl and whisk together eggs, sour cream, milk, 1 tsp salt, ¼ tsp pepper and ¼ tsp ground mustard
5. Pour egg mix over potatoes, cover with foil and bake for 45 min
6. Remove foil, top with remaining cheese and bake till eggs are set and cheese is bubbly
7. Garnish with your favorite fresh veggies

the topping: creamy and light

The magic happens with the topping — a smooth mixture of eggs, milk, and sour cream whisked together and poured over the base. As it bakes, the eggs set perfectly while the sour cream adds a creamy tang that keeps every bite moist and rich.

weekend ready, anytime

Whether you’re hosting brunch at home or hitting the road for a friends-and-family weekend, this breakfast casserole travels well, feeds many, and delivers comfort in every bite.

make it your own

One of the best things about this casserole is how easy it is to customize. Think of it as a blank canvas for your favorite breakfast flavors:
Protein swap: Try bacon, ham, or skip the protein and add in your veggies!
Cheese twist: Go classic with cheddar, smoky with gouda, or creamy with Monterey Jack.
Toppings: After baking, top with chives, tomatoes, avocado slices, or a drizzle of hot sauce for a finishing touch.
No matter how you make it, the result is always cozy, comforting, and crowd-approved.

Final thoughts

Weekends are made for slowing down — for coffee refills, second helpings, and the kind of conversations that don’t need a clock. This breakfast casserole is more than a recipe; it’s a reminder that a little planning, a dash of flavor, and good company can turn any morning into something memorable.

At Birdy & Pretzels, we believe in food that brings people closer — whether you’re gathered around a table, a campfire, or a kitchen island. Here’s to the mornings that start with comfort and end with laughter.

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