In a skillet, heat the olive oil over medium-high heat. Add the ground beef and cook, breaking it up with a spoon, until browned. Drain any excess fat.
Add the diced white onion to the skillet with the beef. Sauté for 3-4 minutes, until the onions are soft.
Stir in garlic powder, chili powder, cumin, smoked paprika, salt, and pepper. Add a splash of beef broth or water to keep the mixture moist and cook for another 2-3 minutes until everything is well combined and flavourful.
Preheat your oven to 375°F (190°C). Lightly brush or spray both sides of the mini flour tortillas with olive oil. This will help them crisp up nicely.
Spoon the beef mixture into the center of each tortilla, then sprinkle a generous amount of shredded cheese on top.
Carefully fold each tortilla in half, forming a taco shape.
Place the folded tortillas on a baking sheet (you can use a wire rack if you have one). Bake for 10-12 minutes, or until the tortillas are golden and crispy and the cheese has melted. Remove from the oven, let cool a few minutes, then serve with desired toppings.
Notes
The tacos should stay closed. If they start to pop open, you can place a baking sheet or another pan on top for the first few minutes of baking to keep them in place.You can omit the individual spices and use my homemade taco seasoning instead, if you prefer.