Taco Soup

2 Pounds Of Lean Ground Beef, 1 Small Onion Chopped, 3 (4 Ounce) Cans Of Chopped Green Chilies, 1 Tsp Salt, 1 Tsp Pepper, 1 Can Chili Beans, 1 Can Lima Beans, 1 Can Red Kidney Beans, All Beans Drained, 1 Package Taco Seasoning, 1 1/2 Cup Water, 1 Package Ranch Dressing Mix, 3 Cans (14 1/2 Oz. Each) Of Stewed Tomatoes, Brown Beef & Onion Drain Fat, Add All Ingredients Simmer 30 Mins, Serve With Taco Chips And Shredded Cheddar