One-dish meals can be a lifesaver when you're short on time and ideas. But, oftentimes, easy one-pot meals are loaded with fat, whether it be from the condensed soup, grated cheese, or other calorie-laden ingredientsespecially when you are looking for a recipe that includes ground beef. This recipe is an exception, combining ground beef with plenty of vegetables to make this hearty supper dish. The trick is to use extra-lean ground beefand only 8 ounces of itand fill the skillet with healthy ingredients like celery, onion, carrots, green beans, mushrooms, and zucchini. This easy low-fat skillet meal that can be on the table in 30 minutes.