This isn’t your basic taco bake. With two types of beef, bold seasoning, and a citrusy sour cream layer, this dish delivers on flavor, texture, and visual appeal. Whether you’re cooking for a crowd or prepping meals ahead of time, this one’s a certified winner.
Start by organizing all your ingredients. Dice your onions, jalapeños, cilantro, and tomatoes.
Grate your cheese if you’re not using pre-shredded. This makes assembly faster and cleaner.
Step 2 – Let’s Make Pico
For the pico, we are keeping it simple; Just tomatoes, jalapeño, onion, lime, and cilantro. Season to taste and boom… perfection.
This will keep in the fridge for 3-4 days easily and makes for a great snack or to top off an omelette in the morning.
Step 3 – Mix the Sour Cream Lime Layer
In a bowl, combine sour cream with lime zest, lime juice, tajin, sugar, and the seasoning of your choice.
Stir until smooth. This layer adds a tangy, cooling contrast to the spicy beef and could be included in the casserole or optionally, used for serving on the side.
Step 4 – Cook the Beef Mixture
In a large skillet over medium heat, brown both ground beefs until fully cooked.
Drain any excess grease.
Add the diced onion and jalapeños.
Sauté for about 5 minutes until soft.
Step 5 – Add Flavor Base
Measure out the seasonings and add once you begin cooking the beef. (Optionally you could use ground turkey or chicken too)
It’s important to brown your meat thoroughly. This will add texture, color, and flavor.
Stir in beef bouillon, water, and your seasonings (Sazon, chili powder, cumin, smoked paprika, Italian seasoning, and all-purpose seasoning).
Simmer until the mixture is thickened and aromatic.
Step 6 – Grate Cheese
You can use store-bought pre-shredded cheese here, but I am a fan of grating it myself. You can also have free reign to decide what cheese blend you want to use. I like Colby or Monterey Jack. Pepperjack would work too as a spicier option.
Optionally, I like to add a layer of cotija cheese on top. I had some in the fridge so decided to add it here, but I don’t always.
Step 7 – Assemble the Casserole
In a 9×13″ baking dish, layer the casserole as follows:
Spread refried beans across the bottom.
Add the seasoned beef mixture evenly.
Spread the sour cream lime mixture over the beef.
Sprinkle 1.5 cups of shredded cheese.
Add the crushed Doritos for a crunchy topping.
Step 8 – Bake to Perfection
Place the casserole in a preheated oven at 375°F (190°C).
Bake uncovered for 20-25 minutes until the cheese is fully melted and bubbling.
Step 9 – Garnish & Serve
Remove from the oven and let rest for 5 minutes. Top with the remaining cheese, black olives, diced tomatoes, and fresh cilantro.
Notes
Tips for Serving & Storage
What to Serve With Taco Casserole
Tortilla chips or warm flour tortillas
Sliced avocado or a drizzle of hot sauce
Fresh pico de gallo (optional, but delish!)
Leftover Love
Store leftovers in an airtight container in the fridge for up to 4 days. Reheat in the oven or microwave. Tastes even better the next day!