Heat the olive oil in a large skillet over medium-high heat.
Add the ground beef to the skillet and cook for about 5 minutes, or until the beef is browned.
Add the chili powder, garlic powder, onion powder, smoked paprika, cumin, salt, black pepper, cayenne pepper, and red pepper flakes. Stir to combine and cook for an additional 2 minutes.
Divide the lettuce onto two plates and top each with half of the beef mixture, tomatoes, red onions, cheese, salsa, sour cream, and jalapeños (if using).
Serve immediately.
Interesting Facts
This dish is perfect for a quick and easy meal that is low-carb and keto-friendly.
The beef can be substituted for ground turkey or ground chicken for a lighter version.
Sour cream can be substituted for plain Greek yogurt if desired.
For a spicy twist, add a few teaspoons of hot sauce to the beef mixture.