Step 1: Preheat your oven to 375°F (190°C) to ensure crispy taco shells.
Step 2: In a large skillet over medium heat, brown the lean ground beef for about 5-7 minutes, stirring occasionally until it's no longer pink.
Step 3: Drain any excess fat, then stir in the tomato sauce and taco seasoning. Simmer for an additional 3-4 minutes.
Step 4: Arrange the crispy taco shells on a baking sheet and fill each shell with the seasoned beef mixture. Top with shredded cheese.
Step 5: Bake for about 10-12 minutes until the cheese is melted and the taco shells are golden brown and crispy.
Step 6: While the tacos bake, prepare your toppings by chopping lettuce, pico de gallo, and corn salsa, and set out sour cream and guacamole.
Step 7: Serve the tacos immediately with your selection of toppings, allowing everyone to customize their own tacos.
