Ingredients
Scale
- 1 pound lean ground beef
- 1 cup chopped onion
- 1 package Taco seasoning
- 1/3 cup water
- 3 tablespoons butter, melted, divided
- 6 (10-inch) flour tortillas
- 2 cups shredded Cheddar cheese
- 1/2 cup chopped cilantro (optional)
- 3 medium ripe tomatoes, seeded, diced, and drained on paper towels
- 8 ounces sour cream, plus more for serving
- 8 tostada shells
- 1 (15 oz.) can nacho cheese
- 1/2 cup shredded lettuce, or to taste
- 2 tablespoons guacamole, or to taste
- 1 teaspoon hot sauce, or to taste (Optional)
Instructions
- Gather the ingredients. Preheat the oven to 375 degrees F (190 degrees C).
- Heat a large skillet over medium-high heat. Add ground beef and cook for 2 minutes, crumbling with a wooden spoon and stirring constantly.
- Add onion and cook, stirring often, until meat is browned and onion has softened, about 5 minutes. Season with taco seasoning and stir to coat the meat mixture.
- Pour in water and cook for 2 minutes, stirring constantly and scraping up any browned bits from the bottom. Remove from heat and set aside.
- Brush melted butter lightly to coat a 9×13 baking dish. Arrange 5 tortillas along the edges and bottom of the pan, allowing any excess to hang over the sides and overlapping to completely cover the pan.
- Spread shredded cheese over the tortillas. Top evenly first with cilantro and then tomatoes.
- Spoon sour cream into a plastic bag and squeeze over the tomatoes.
- Arrange tostada shells over the sour cream overlapping them to make them fit. Spread nacho cheese sauce over tostadas.
- Pour cooked beef mixture over cheese sauce and spread into an even layer.
- Place remaining tortilla on the center of the beef mixture. Wrap the over-hanging tortillas around over the top tortilla.
- Brush casserole with the remaining butter and press down any loose ends.
- Bake in the preheated oven until golden brown and lightly toasted, about 30 minutes.
- Let stand for 5 minutes and then carefully invert casserole onto a serving board or cutting board.
- Using a large serrated knife, cut the casserole into desired servings. Top with shredded lettuce, more sour cream or guacamole, and hot sauce if desired.
Notes
- To prevent the top from getting soggy, ensure the casserole is baked until golden brown.
- Handle tortillas gently to avoid tearing.
- You can prepare the beef mixture ahead of time and assemble the casserole just before baking.
- Let the casserole stand for 5 minutes before cutting to help it hold together.
- Prep Time: 20 minutes
- Cook Time: 30 minutes
- Category: Main Dish
- Method: Baking
- Cuisine: Mexican
- Diet: Low Lactose
Nutrition
- Serving Size: 1 serving
- Calories: 450
- Sugar: 5g
- Sodium: 800mg
- Fat: 25g
- Saturated Fat: 12g
- Unsaturated Fat: 10g
- Trans Fat: 0g
- Carbohydrates: 35g
- Fiber: 4g
- Protein: 25g
- Cholesterol: 80mg