Balsamic Mushroom-Onion Turkey Burgers

Steps

1. Prepare first: slice the onion, slice the mushrooms, mince the garlic, slice the tomato and separate the romaine leaves.
2. Make the patty mix: put the ground turkey in a bowl. Add the breadcrumbs and the Worcestershire sauce.
3. Add half the minced garlic, the dried thyme, half the salt and half the black pepper. Mix gently just until combined.
4. Shape the turkey mixture into 4 patties about 3/4 inch thick and press a shallow dimple in each center. Chill while you cook the topping.
5. Heat half the olive oil in a large skillet over medium heat. Add the onion and cook, stirring often, for 10 minutes until soft and golden.
6. Add the mushrooms, the remaining half of the garlic, the remaining half of the salt and the remaining half of the black pepper. Cook 6–8 minutes until the mushrooms are browned.
7. Stir in the balsamic vinegar and cook 1 minute until glossy. Move the mushroom-onion topping to a bowl and wipe out the skillet.
8. Heat the remaining half of the olive oil in the skillet over medium-high heat. Cook the patties 5–6 minutes per side until they reach 165°F (74°C) in the center.
9. In the last minute, lay a slice of cheddar on each patty, cover the skillet and let it melt.
10. Meanwhile, toast the whole-wheat bread slices.
11. Build each burger: a slice of toasted bread, romaine, tomato, a patty with cheddar, a heap of the mushroom-onion topping and a second slice of toasted bread. Serve hot.