Seasoned ground beef tacos with fresh toppings in warm tortillas.
Dice onion and tomato.
Brown ground beef in a skillet over medium-high heat, breaking it apart.
Add diced onion, cumin, paprika, and salt. Cook 3 more minutes.
Warm tortillas in a dry pan or microwave.
Fill tortillas with meat, top with tomato, cheese, and sour cream.