In a skillet over medium-high heat, add butter/oil and ground beef. After a few minutes add the spices.
Cook the ground beef until it’s completely browned and cooked. Drain the fat if you need to.
Right before serving, crisp the taco shells in the oven according to package instructions.
Serve taco shells with beef mixture, shredded lettuce, diced tomato, diced red onion, sour cream, and grated cheese.
Notes
Notes: I bought the “Old El Paso” taco shells brand, but any taco shells will work. You can even use soft corn/flour tortillas.You can also add hot sauce or salsa for an extra kick.