Make a meatza! Use the meat patted down into a pizza shape and baked/drained, then top with a sauce made with the tomato paste, garlic, and spices.
Top that with thinly sliced tomatoes, mushrooms, and par-boiled (thinly sliced) pumpkin and cook briefly in the oven.
Another idea would be to make a meat stew with the meat, tomatoes, and mushrooms, par-cook the prepared pumpkin (cut the top off and remove seeds first), add the stew and bake until the pumpkin is cooked. It works like an edible bowl for serving- just park it in a real bowl to contain the juices when served.