Beef stew meat becomes moist through slow cooking and with ingredients like diced tomatoes with green chiles. A flavorful cross between chili and stew, this zingy slow-cooker meal is one for the books. Ground cumin, chopped garlic, chili powder and a can of diced tomatoes with green chiles lend an incomparable flavor to hearty stew meat. The best part is that the slow cooker does most of the work for you, so you can throw the ingredients together in the morning and sit down to a warm, homemade dinner in the evening.