Gluten-Free Sausage and Egg Casserole
By the Gluten Free Recipes team ·
A hearty and comforting breakfast casserole featuring savory crumbled sausage, fluffy eggs, and a rich, cheesy custard. This dish offers a satisfying blend of textures, from the tender sausage to the creamy interior, making it a perfect start to any day.
At a glance: This medium breakfast recipe yields 4 servings in about 50 minutes (15 min prep, 35 min cook). It uses 8 ingredients — including gluten-free breakfast sausage, eggs, milk — and walks through 6 steps. Updated . Browse more breakfast recipes or return to all gluten-free recipes.
Cross-Contamination Warning for Gluten-Free Sausage and Egg Casserole: When preparing this breakfast recipe, exercise caution with packaged ingredients like breakfast sausage, ensuring they are certified gluten-free to prevent cross-contamination with gluten. Always use clean utensils and preparation surfaces In a shared kitchen, avoid porous materials — wooden spoons, wooden cutting boards, and scratched non-stick pans can harbor gluten proteins even after washing. Prefer glass, metal, or silicone tools.
Gluten-Free Notes for Gluten-Free Sausage and Egg Casserole: This recipe is naturally gluten-free, relying on whole ingredients and avoiding any gluten-containing grains. Always ensure your breakfast sausage is certified gluten-free.
Ingredients
- 1 lb gluten-free breakfast sausage
- 6 large eggs
- 1.5 cups milk
- 1 cup shredded cheddar cheese
- 0.5 cup chopped onion
- 0.25 cup chopped bell pepper (any color)
- 0.5 tsp salt
- 0.25 tsp black pepper
Instructions
- 1
Preheat your oven to 375°F (190°C) and lightly grease a 9x13 inch baking dish. In a large skillet over medium heat, cook the gluten-free breakfast sausage, breaking it up with a spoon, until it is browned and cooked through, about 8-10 minutes. Drain off any excess grease and set the cooked sausage aside.
- 2
In the same skillet, sauté the chopped onion and bell pepper over medium heat until they begin to soften, approximately 5-7 minutes. You want them to be tender but not mushy, releasing their sweet aroma.
- 3
In a large mixing bowl, whisk together the 6 large eggs, 1.5 cups of milk, 0.5 tsp salt, and 0.25 tsp black pepper until well combined and slightly frothy. This mixture will form the creamy base of your casserole.
- 4
Add the cooked gluten-free breakfast sausage, sautéed onion and bell pepper, and 1 cup of shredded cheddar cheese to the egg mixture. Gently stir everything together until all ingredients are evenly distributed throughout the liquid.
- 5
Pour the entire mixture into the prepared baking dish, spreading it evenly. Bake in the preheated oven for 30-35 minutes, or until the center is set and the top is golden brown and slightly puffed. A knife inserted into the center should come out clean.
- 6
Let the casserole rest for 5-10 minutes before slicing and serving. This allows the casserole to firm up, making it easier to cut and serve. Enjoy this warm, comforting gluten-free breakfast.
Nutrition (per serving)
Tips & Notes
- Separate eggs when cold (the yolks are firmer), then let whites come to room temp before whipping.
- Warm milk (not hot) is key for yeast-based recipes — aim for 105–115°F to activate yeast without killing it.
- Caramelize onions over medium-low heat for 30–45 minutes for a sweet depth; rush at high heat and they'll be bitter.
Learn More
Celiac-safe recipe development and testing since 2026
Our team develops and tests every recipe to be 100% gluten-free, verifying ingredients, techniques, and cross-contamination risks. We focus on making gluten-free cooking as delicious and accessible as possible. Learn more about us.
