Heat olive oil in pan. Saute garlic until soft. Add squash and carrots, sauteing until tender. Add cumin, salt and pepper. Add tomatoes and warm, but do not overcook. Set aside to cool.
Combine cornbread, bread crumbs and chorizo in a bowl. Add vegetable mixture and using two forks, toss together. Add egg. Toss to mix. Add small amounts of stock, tossing to achieve stuffing consistency. Bake in a covered dish in 350F degree oven for 30 minutes.