Heat the olive oil in a large skillet over medium-high heat.
Add the sliced bell peppers and onion to the skillet and sauté for 5-6 minutes until they begin to soften.
Add the minced garlic and cook for 1 minute until fragrant.
Push the vegetables to the side of the skillet and add the ground beef to the center.
Cook the ground beef, breaking it apart with a spatula, until browned and fully cooked, about 6-7 minutes.
Stir the vegetables and beef together in the skillet.
Add chili powder, ground cumin, smoked paprika, dried oregano, cayenne pepper, salt, and black pepper to the skillet. Stir well to evenly coat the beef and vegetables with the spices.
Cook for an additional 2 minutes, stirring occasionally, to allow the flavors to meld.
Warm the flour tortillas in a dry skillet or microwave.
To serve, spoon the ground beef and vegetable mixture onto each tortilla, garnish with chopped cilantro, and squeeze lime wedges over the top.