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Taco night is great — taco night in casserole form is better. All the seasoned beef, the creamy sour cream, the cheese, the crunch, layered up and baked together so every single bite has everything in it. No cold meat. No broken shells. No twelve little bowls to wash.
The biscuit layer is the move here. Tortilla chips go soggy the second anything hits them, so biscuit mix was the answer — it bakes up golden on top of the beef, holds its own under all the toppings, and gives you that hearty base that makes this actually filling. Once it comes out of the oven, you pile on sour cream, lettuce, tomatoes, olives, and cheddar, and you’ve got a full taco situation in every spoonful.
Why You’ll Love It
- No assembly required — Everything goes into one 9×13 dish, which means dinner is on the table faster and cleanup is actually manageable
- Feeds a crowd — Serves 8, and it’s hearty enough that people aren’t going back for a fourth helping just to feel full
- The biscuit layer is genius — Sturdier than chips, more satisfying than tortillas, and it soaks up just enough of the beef flavor without going soft
- Fully customizable toppings — Pile on whatever you like after it comes out of the oven; the base is already done
- Great for leftovers — Reheats well the next day, just add fresh lettuce
A Note on the Ingredients
The biscuit mix is non-negotiable, in my opinion. Bisquick works great, but any biscuit mix does the job. Don’t overthink it.
For the beef, I use 80/20. You’re going to drain the fat anyway, so let it help you get a proper brown first. Don’t skip the drain step — nobody wants greasy biscuits.
The taco seasoning packet keeps things easy and consistent. Use whatever brand you like.
Cheese: sharp cheddar, grated yourself if you can. Pre-shredded has an anti-caking coating that keeps it from melting as nicely, though it works in a pinch.
The olives are optional. Half the people at the table will pick them out. Put them in anyway.
The Ingredients
- 2 pounds ground beef
- 1 (1 oz.) packet taco seasoning
- 4 eggs
- 3/4 cup whole milk
- 1 3/4 cups biscuit mix or Bisquick
- 1/2 cup sour cream
- 2 cups lettuce, chopped or shredded
- 1 cup tomato, finely chopped
- 2 cups sharp cheddar cheese, grated
- Sliced black olives, optional
- Kosher salt and freshly ground pepper, to taste
Let’s Make It
Preheat your oven to 400°F and grease a 9×13 baking dish with nonstick spray.
In a large bowl, beat the eggs and milk together until combined, then stir in the biscuit mix and season with salt and pepper if using. It’ll look thicker than pancake batter — that’s right. Set it aside.
Season the beef with salt and pepper and cook in a skillet over medium-high heat until browned. Drain the fat, then stir in the taco seasoning per the packet directions — usually a splash of water and a couple of minutes until it’s coated and fragrant.
Spread the beef in an even layer in your baking dish. Pour the biscuit batter over the top and spread it out. It’ll be thin, but it puffs up in the oven.
Bake for 22–25 minutes, until the biscuit layer is golden brown. Let it cool for at least 10 minutes before adding your toppings — skip this and the sour cream melts right off.
Spread the sour cream across the biscuit layer, then add the lettuce, tomatoes, and olives. Finish with the cheddar on top. If you want the cheese to melt slightly, do it right after the sour cream before the lettuce goes on — both versions are good, it just depends on whether you want gooey or fresh.
A Few Variations Worth Knowing
Black beans or pinto beans added to the beef layer work really well and stretch the dish further. Jalapeños if your crowd runs spicy. Ground turkey swaps in fine for a lighter version — not quite the same depth of flavor, but totally solid.
I tried this once with biscuit dough from the tube instead of the mixed batter. Too thick, didn’t integrate with the beef the same way. Stick with the batter.
Storage and Reheating
Keeps in the fridge for about three days. The biscuit layer holds up well; the lettuce does not — add fresh when you reheat. Everything else reheats great in the microwave, or in a low oven if you have time.
Serve warm, cut into big squares. Extra sour cream on the side is never a bad idea. Sliced avocado on top if you’ve got a good one. And hot sauce on the table — that part isn’t optional.
Taco Casserole
Ingredients
- 2 lb ground beef
- 1 oz taco seasoning packet
- 4 eggs
- 3/4 cup whole milk
- 1 3/4 cups biscuit mix or Bisquick
- 1/2 cup sour cream
- 2 cups lettuce chopped or shredded
- 1 cup tomato finely chopped
- 2 cups sharp cheddar cheese grated
- black olives sliced, optional
- salt to taste
- black pepper to taste
Instructions
- Preheat your oven to 400°F (200°C) and lightly grease a 9x13-inch baking dish.
- In a large bowl, whisk together the eggs and milk until smooth, then stir in the biscuit mix along with a pinch of salt and pepper. Set aside.
- In a skillet over medium heat, cook the ground beef until browned and fully cooked. Drain any excess grease, then stir in the taco seasoning until well coated.
- Spread the seasoned beef evenly across the bottom of the prepared baking dish.
- Pour the biscuit batter over the beef and gently spread it into an even layer.
- Bake for 22–25 minutes, or until the top is golden and set in the center.
- Remove from the oven and let it rest for about 10 minutes so it sets up slightly.
- Spread the sour cream evenly over the warm casserole.
- Top with lettuce, tomatoes, olives if using, and finish with a generous sprinkle of cheddar cheese.
- Slice, serve warm, and enjoy your taco-inspired comfort bake.