Breakfast Enchilada Casserole
A savory, make-ahead breakfast casserole that layers tender corn tortillas with spiced breakfast sausage, sautéed peppers and onions, scrambled eggs, and a bright enchilada sauce for a brunch-ready dish. Bake until set and bubbly—perfect for feeding a crowd or portioning for weekday meal prep.
Ingredient Spotlight
small corn tortillas
Corn tortillas are thin flatbreads made from masa (nixtamalized corn dough) and are a staple of Mexican cuisine; they have a pronounced corn aroma and a slightly chewy, grainy texture compared with flour tortillas. They’re sold fresh or packaged in the Mexican/Latin aisle and at tortillerías; if you can’t find them, small flour tortillas or homemade tortillas made from masa harina (Masa Harina + water) are the closest substitutes, though the flavor and texture will differ.
Ingredient Spotlight
red enchilada sauce
Red enchilada sauce is a Mexican sauce typically made from rehydrated dried chiles (often guajillo or ancho) with garlic, cumin, oregano and tomato; it’s tangy, mildly smoky, and can range from mild to moderately spicy. You’ll find it canned or bottled in the Latin aisle or Mexican markets; a good substitute is a homemade puree of rehydrated guajillo/ancho chiles, tomato paste, garlic and cumin or a store-bought red salsa cooked down and seasoned to taste.
Ingredient Spotlight
shredded Mexican-blend cheese
Mexican-blend cheese is a pre-shredded mix (commonly cheddar, Monterey Jack, asadero, and/or queso quesadilla) formulated to melt well and suit Mexican dishes. It’s found in the refrigerated cheese section of most supermarkets; if unavailable, substitute with a 50/50 mix of shredded Monterey Jack and mild cheddar (freshly shredded from blocks for best melting and no anti-caking agents).
Author's Note
"This casserole shines at casual brunches and is excellent for prepping ahead—slice and refrigerate or freeze portions for quick reheating. Home cooks will love how it transforms simple breakfast ingredients into a crowd-pleasing layered bake."
Breakfast Enchilada Casserole
This Breakfast Enchilada Casserole turns the idea of a messy skillet scramble into a tidy, sliceable brunch centerpiece. Layers of torn corn tortillas soak up a bright red enchilada sauce while a savory mix of well-browned breakfast sausage, sautéed onions and red pepper, and a custardy egg-milk custard knit everything together. The contrast—soft, saucy pockets under a molten, slightly crisped cheese top—is what makes this version sing: the corn tortillas give a subtle grainy texture and corn flavor that stands up to the assertive sausage and chili-spiced eggs.
It’s a workhorse recipe for weekends and make-ahead mornings alike: assemble the night before to let the tortillas hydrate evenly, or portion and freeze for weekday reheats. Small technique choices—torn tortillas to avoid rigid layers, pre-cooking and draining fatty components, and a gentle whisked egg pour—keep it from becoming dense or greasy. Serve it with bright accoutrements (lime, cilantro, pickled onions) and it becomes as festive as it is practical, feeding a crowd or simplifying weekday breakfasts with little compromise on flavor.
Plan your timing
Ingredients
Instructions
Cook the sausage and vegetables
For this step
- 1 lbground breakfast sausage
- 1 itemmedium yellow onion, finely diced
- 1 itemred bell pepper, seeded and diced
Whisk the eggs
For this step
- 8 itemlarge eggs
- 1 cupwhole milk
- 1 tspchili powder
Assemble the casserole
For this step
- 8 itemsmall corn tortillas
- 2 cupsred enchilada sauce
- 2 cupsshredded Mexican-blend cheese
Bake until set
Rest, serve, and store
Tips from the kitchen
Brown the sausage well
Cook the sausage until it's deeply browned so you get rich caramelized flavor and less residual fat in the casserole.
Sauté vegetables first
Cook onions and peppers until softened and some moisture has evaporated—this prevents a watery bake and concentrates their sweetness.
Tear tortillas to fit
Tearing rather than neatly folding corn tortillas helps them conform to the dish and soak the egg-enchilada liquid evenly.
Press eggs into layers
After pouring the egg mixture, press gently so it distributes into gaps; this ensures an even custard rather than pools on top.
Avoid over-browning top
If the cheese is darkening too fast, tent loosely with foil for the last 10–15 minutes so the interior cooks without burning the surface.
Variations & substitutions
Vegetarian black bean
Swap the sausage for a spiced black bean and corn mixture (season with cumin and smoked paprika) and add sliced zucchini for extra body.
Chicken enchilada
Use shredded rotisserie chicken tossed with a little enchilada sauce in place of sausage for a leaner, milder-flavored casserole.
Dairy-free version
Use an unsweetened plant milk (soy or oat) in the egg mix and top with a vegan shreddable cheese; a sprinkle of nutritional yeast adds savory depth.
Spicy chorizo twist
Replace breakfast sausage with Mexican chorizo for a smokier, spicier profile; reduce added chili powder accordingly to balance heat.
Storage & make-ahead
Cool the casserole completely before refrigerating in an airtight container; it will keep well for up to 4 days. For longer storage, slice into portions and freeze wrapped tightly for up to 2 months. Reheat slices in a 350°F oven for 12–20 minutes or microwave single portions covered with a damp paper towel for 90–120 seconds until warmed through.
What to serve with it
Garnish slices with sliced green onion, chopped cilantro, a dollop of sour cream or crema, and a few avocado slices or pickled red onions to cut the richness. Serve alongside a crisp green salad or roasted breakfast potatoes, and offer lime wedges and hot sauce at the table; pair with bright coffee, a sparkling citrus mocktail, or a light margarita for brunch.
Frequently asked questions
Can I use flour tortillas instead of corn?
Yes—flour tortillas will yield a softer, less textured bite and absorb slightly less sauce, so you may want to tear larger pieces or use one extra tortilla layer for structure.
Can I assemble this the night before?
Absolutely; assemble, cover, and refrigerate up to 24 hours before baking. Bring it closer to room temperature for 20–30 minutes before baking so it cooks more evenly and the center sets in the allotted time.
How do I prevent the casserole from becoming soggy?
Drain excess fat after browning the sausage, cook vegetables until some moisture has evaporated, and avoid overly wet enchilada sauce—slightly thick sauce hydrates tortillas without turning them mushy.
Is there a way to make this lower in fat?
Use lean ground turkey or chicken sausage and substitute skim or low-fat milk for whole milk; you can also reduce the cheese to 1 cup or choose a lower-fat melting cheese.
How can I tell when it's done?
The center should be set and a knife inserted into the middle should come out mostly clean; the internal temperature of the custard should be about 160°F for safe eggs and a firm texture.
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Ingredients
- ground breakfast sausage1 lb
- medium yellow onion, finely diced1 item
- red bell pepper, seeded and diced1 item
- large eggs8 item
- whole milk1 cup
- chili powder1 tsp
- small corn tortillas8 item
- red enchilada sauce2 cups
- shredded Mexican-blend cheese2 cups
Nutrition Facts
Per serving: 1 slice (390g)
Nutrition values are estimated from USDA ingredient data and may vary based on preparation, brands, and portion sizes. Values are provided for informational purposes only.
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