First, wash your peppers and carefully cut off the tops. Remove seeds and membranes so the filling fits perfectly. I like to lightly blanch them in boiling water for 3-4 minutes to soften slightly, which helps them cook evenly.
In a skillet, sauté onions and garlic until fragrant. Add the ground turkey and cook until browned, then stir in diced tomatoes, quinoa, and seasonings. I always taste and adjust salt and pepper at this stage for a perfectly balanced filling.
Spoon the turkey mixture into each pepper generously. Don’t overfill, but make sure each pepper is packed nicely. I like to top each one with shredded mozzarella for a gooey finish.
Place stuffed peppers in a baking dish, cover with foil, and bake at 375°F (190°C) for 25 minutes. Remove the foil for the last 5 minutes to let the cheese melt and turn golden. I always check them at the end to ensure the peppers are tender but not mushy.
Sprinkle fresh parsley on top before serving. It adds a burst of color and freshness that makes the dish look as good as it tastes.