Cook the Beef: In a large skillet over medium heat, brown the ground beef. Drain off any excess grease.
Add Veggies and Seasoning: Return the beef to the skillet. Add the onion and cook until softened. Stir in the taco seasoning and diced tomatoes and chilies. Simmer for 5 minutes.
Prepare the Tortillas: Heat a large skillet over medium heat. Fold each tortilla in half and place it in the hot skillet, seam-side down. Fry for 1-2 minutes per side, or until golden brown and crispy.
Assemble the Tacos: Remove the tortillas from the skillet and place them on a serving platter. Fill each tortilla with the beef mixture and top with shredded cheese.
Serve: Serve immediately with your favorite toppings.
Tips & Variations:

Spice it up: Add a jalapeño or serrano pepper to the beef mixture for extra heat.
Veggie Boost: Add chopped bell peppers, onions, or mushrooms to the beef mixture.
Healthy Swap: Use lean ground beef or ground turkey for a healthier option.
Baked Tacos: For a healthier alternative, you can bake the tacos in the oven. Preheat oven to 400°F (200°C). Place the filled tortillas on a baking sheet and bake for 8-10 minutes, or until the cheese is melted and bubbly.
Enjoy your crispy beef tacos! Let me know if you’d like any variations or have any other questions