Mix ground turkey, onion, water, seasonings, and salt and pepper. Shape mixture into 4 patties, each about 3/4 inch thick.
Preheat oven to broil. Place patties on rack in broiler pan. Broil about 3 inches from heat until desired doneness. Prepare the mushrooms and onions to go over the top of the burgers.
MUSHROOMS AND ONIONS (can be made while burgers are broiling. Keep an eye on the burgers though and use a timer).
In a skillet, heat olive oil over medium heat, and the onions stirring occasionally, until tender. Stir in mushrooms and Worcestershire sauce; heat until mushrooms are hot and cooked through. Top burgers with this mixture.
Per serving: 267 Calories; 18g Total Fat; (60% calories from fat); 21g Protein; 1g Dietary Fiber; 5g Carbohydrate; 70mg Cholesterol; 260mg Sodium
LC SERVING SUGGESTIONS: Rutabaga fries (peel rutabagas, slice into fries, toss with a little olive oil, garlic powder, salt and pepper and bake in 375 oven till brown; turn once and bake till brown again) and big green salad.
SERVING SUGGESTIONS: Throw the burger on a bun and serve the usual condiments with it.