In a skillet over medium heat, add the ground beef and cook until browned.

Drain excess fat and add cumin, chili powder, garlic powder, onion powder, salt, and pepper. Stir to combine and cook for an additional 5 minutes.

Warm the corn tortillas in a separate skillet or microwave.

Fill each tortilla with the seasoned meat, then top with chopped onion, cilantro, and diced tomatoes.

Serve with lime wedges on the side.