Preheat your oven to 400°F and line a baking sheet with parchment paper for easy cleanup.
Heat the olive oil in a large skillet over medium-high heat until shimmering.
Add the ground turkey, diced onion, and red bell pepper to the skillet and cook until the turkey is browned, breaking it into small crumbles with a spatula.
Stir in the chili powder, ground cumin, garlic powder, cayenne pepper, sea salt, and black pepper, cooking for another minute until the spices are fragrant.
Lay the flour tortillas flat on the prepared baking sheet and divide the spicy turkey mixture evenly between them.
Fold each tortilla in half over the filling and press down gently to ensure they stay closed during baking.
Place the baking sheet in the oven and bake for 8 to 10 minutes until the tortilla edges are toasted and slightly crunchy.
Remove from the oven and let the tacos rest for one minute to allow the filling to set.
Serve the warm tacos with fresh salsa on the side for dipping or drizzling.