Gluten-Free Breakfast Casserole

If you’re looking for a hearty, crowd-pleasing breakfast that’s easy to prep and bakes up golden and bubbly, this Gluten-Free Breakfast Casserole is exactly what you need. Perfect for family gatherings, holiday brunches, or just a lazy weekend breakfast, this dish satisfies both gluten-free and non-gluten-free eaters alike.

By DelishCorner -Madilyn-

Whether you’re hosting a holiday breakfast, a birthday brunch, or a simple weekend meal, breakfast casseroles are a classic, all-American favorite. They’re not only practical for feeding a crowd, but they’re also universally loved because of their hearty, cheesy, and flavorful nature.

Why You’ll Love This Gluten-Free Breakfast Casserole

This recipe combines simple ingredients into a satisfying dish everyone will rave about. Here’s why it stands out:

  • Quick Prep: Assemble in minutes and let the oven do the rest.
  • Crowd-Friendly: Serves a big group without extra hassle.
  • Flavorful: Cheesy, savory, and perfectly balanced with hash browns and sausage.
  • Flexible: Easy to customize with your favorite veggies, cheese, or sausage flavor.

Main Ingredients You’ll Need

To make this gluten-free breakfast casserole at home, you won’t need anything fancy. Here’s the essentials list:

  • Shredded frozen hash browns: I recommend using a gluten-free brand for the best texture. Make sure to thaw before baking.
  • Ground pork breakfast sausage: Stick to a gluten-free brand like Jimmy Dean. Original flavor works great; spicy adds a nice kick.
  • Eggs: The binding ingredient for a rich, creamy texture.
  • Sour cream: Adds extra moisture and tang.
  • Milk: Any kind will work – dairy or non-dairy.
  • Shredded cheddar cheese: Sharp cheddar gives flavor and a gorgeous golden top.

These ingredients come together effortlessly for a casserole that’s satisfying and comforting, perfect for any morning.

Can You Make This Ahead of Time?

Absolutely! If you want to prepare the casserole the night before, here’s a tip:

  • Keep the egg and sausage mixture separate from the hash browns.
  • Combine just before baking in the morning.

This makes breakfast stress-free while keeping the flavors fresh. Serve it with fresh salsa, guacamole, or a bright fruit salad for a complete morning feast.

Step-by-Step Instructions

Step 1: Cook the Sausage

Start by browning your ground sausage in a large skillet over medium heat. Add a chopped shallot or small onion for extra flavor. Once cooked, drain any excess fat and allow it to cool slightly.

Step 2: Whisk the Eggs

In a large bowl, whisk together your eggs with salt and pepper until smooth. Stir in the sour cream and milk until fully incorporated. This mixture will give your casserole a creamy, tender texture.

Step 3: Combine Ingredients

Add the cooked sausage, most of the shredded cheddar, and the thawed hash browns to the egg mixture. Stir everything until evenly combined. If the mixture feels too thick, whisk in an extra egg or a splash of milk to loosen it up.

Step 4: Bake the Casserole

Spray a 9×13” baking dish with nonstick spray. Pour in the mixture and spread evenly. Sprinkle the remaining cheese on top and cover with foil. Bake at 350°F (175°C) for 60-75 minutes until the center is set. Remove the foil for the last 5 minutes to let the cheese turn golden brown and bubbly.

Step 5: Let It Rest and Serve

Once baked, let the casserole sit for 15-20 minutes before slicing. This allows it to firm up and makes serving easier. Leftovers can be reheated in the microwave for a quick, satisfying breakfast later in the week.

By DelishCorner -Madilyn-
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Gluten-Free Breakfast Casserole


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  • Author: Madilyn
  • Total Time: 1 hr 30 min

Ingredients

1 lb ground pork breakfast sausage (gluten-free, e.g., Jimmy Dean)

1 large shallot or 1 small onion, chopped

6 large eggs

1 tsp salt

½ tsp black pepper

8 oz sour cream

¾ cup milk (any kind)

8 oz shredded sharp cheddar cheese, divided

4 cups frozen shredded hash browns, thawed


Instructions

  1. Preheat Oven & Prep Dish
    Preheat oven to 350°F (175°C). Spray a 9×13” baking dish with nonstick spray and set aside.
  2. Cook the Sausage
    Heat a large skillet over medium heat. Add the sausage and chopped shallot or onion. Cook until sausage is browned and cooked through. Drain excess fat if needed and let cool slightly.
  3. Whisk Egg Mixture
    In a large bowl, whisk eggs with salt and pepper. Add sour cream and milk, whisking until smooth.
  4. Combine Ingredients
    Stir in cooked sausage, ¾ of the shredded cheddar, and thawed hash browns until everything is well combined. If mixture seems dry, whisk an extra egg with a splash of milk and fold in.
  5. Assemble Casserole
    Pour the mixture into the prepared baking dish. Spread evenly and sprinkle the remaining cheese on top. Cover with foil sprayed with nonstick spray.
  6. Bake
    Bake for 60-75 minutes or until the center is set and a knife inserted in the middle comes out clean. Remove foil and bake for an additional 5 minutes for a golden, bubbly cheese topping.
  7. Rest & Serve
    Let the casserole sit for 15-20 minutes before slicing. Serve with fresh salsa, guacamole, or fruit salad. Leftovers reheat beautifully in the microwave.

Notes

  • Make-Ahead Tip: Keep egg mixture separate from hash browns and sausage if preparing the night before; combine just before baking.
  • Cheese Options: Use your favorite cheese for variation, like Monterey Jack or pepper jack for a spicy twist.
  • Add Veggies: Bell peppers, spinach, or mushrooms can be added to boost nutrition and flavor.
  • Prep Time: 15 min
  • Cook Time: 1 hr 15 min
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Founder of Delishcorner.net, I share quick and reliable recipes for busy families.