Easy Chili
["1 1/4 lb. ground lean beef chuck", "1 (14 oz.) bottle ketchup", "1 (14 oz.) bottle water", "1 1/2 Tbsp. chili powder or to taste", "1 1/2 Tbsp. vinegar", "1 large onion, sliced", "salt and pepper to taste", "1 (16 oz.) can kidney beans", "grated cheese (optional)"]
["In a Dutch oven, combine meat, ketchup, water, chili powder, vinegar, onion, salt and pepper.", "Simmer for about 45 minutes, making sure to crumble meat into small pieces as it cooks.", "Add partially drained beans and simmer about 15 minutes longer.", "If desired, serve with topping of grated cheese."]
["ground lean beef chuck", "ketchup", "water", "chili powder", "vinegar", "onion", "salt", "kidney beans", "grated cheese"]