Use a dutch oven (large oven proof pan that can then be put in the oven) to brown beef. Brown beef with 1 cup water, 2 cloves garlic and 1 tbsp chopped raw onion. When beef is browned, most of the water will have evaporated. Add in 3 cups frozen mixed vegetables (corn, green beans, peas, carrots), 3 tbsp Tone's gravy mix, 3 tsp worchestershire sauce and 1 cup water. Simmer together until vegetables are cooked. In separate pan, prepare mashed potatoes. Preheat oven to 400 F. Remove beef and vegetables from heat and spread hot mashed potatoes over the top. Sprinkle top with 1 cup extra sharp cheddar cheese. Bake until the cheese is crispy and bubbly. Slice the "pie", as there is no crust to this particular version, into six evenly sized portions.