Crumble the ground beef into a large skillet over medium-high heat. Add the sausage, garlic and onion; cook and stir until the meat is no longer pink. Drain off grease, and transfer the contents of the skillet to a large pot.
Pour the tomatoes into the pot with the meat, and stir in the potatoes, pinto beans, corn, diced tomatoes with chilies, mixed vegetables and water. Season with cumin, chili powder, salt and pepper. Cover, and simmer over medium-low heat for at least 1 hour. Stir occasionally. The longer this stew cooks, the better it gets.
