Preheat the oven to 350.
Chop onion and carrots into bite sized pieces.
Spray a pan with non-stock spray and toss in the onion and carrot until the onions are transparent.
Add the ground turkey, salt, pepper, and garlic (Crushed), to taste. Cook until turkey is browned thoroughly.
Spray a pie tin with non stick spray and add in the turkey mixture. Drizzle Worcestershire sauce over the filling
Top the filling the cauliflower mash and spread evenly.
Top with shredded cheddar cheese.
Bake for 25 minutes. Set broiler for 5 minutes to brown the edges of the cheese