Turkey-Cheddar Burgers

In a large skillet, heat oil over medium-high. Add onion and saute until translucent, 6 to 7 minutes. Add garlic and cook until fragrant, 1 minute. Transfer to a medium bowl and add turkey, breadcrumbs, mustard, and parsley. Gently mix until combined and form into 8 thin patties.

Heat a grill or grill pan to medium-high. Clean and lightly oil hot grill. Season patties with salt and pepper, then brush with oil. Grill, covered, until cooked through, about 4 minutes per side; during last minute of cooking, top each burger with cheese and cover grill. Serve burgers on buns with desired toppings.