Prepare the Beef Filling

1. Cook the Beef: In a large skillet over medium heat, brown the ground beef with the chopped onion until the meat is cooked through and the onion is softened, about 5-7 minutes.
2. Add Garlic and Spices: Stir in minced garlic, chili powder, cumin, paprika, salt, and pepper. Cook for an additional 2 minutes until fragrant.
3. Mix in Cheese: Remove from heat and stir in shredded cheddar cheese until melted and well combined.

Assemble the Rolls-Up

1. Warm the Tortillas: Warm the flour tortillas in a dry skillet or microwave until pliable.
2. Spread Sauce: Spread a couple of tablespoons of salsa or taco sauce over each tortilla.
3. Add Filling: Spoon a generous amount of the beef and cheese filling down the center of each tortilla.
4. Roll It Up: Tightly roll each tortilla up, folding in the sides as you go to enclose the filling.

Bake the Rolls-Up

1. Preheat the Oven: Preheat your oven to 375°F (190°C).
2. Place in Baking Dish: Arrange the rolled tortillas seam-side down in a greased baking dish.
3. Top with Sauce: Pour remaining salsa or taco sauce over the top of the rolls.
4. Bake: Bake in the preheated oven for 15-20 minutes, or until heated through and slightly crispy.