Combine ground beef, onion soup mix, bread crumbs, egg, ketchup, and the 1/2 cup water, mix well. Form into large patties.

Place a few tbsp. olive oil in frying pan and heat until oil is shimmering. Place patties in pan and brown on both sides.

Mix together the mushroom soups, bouillon cube granules, Worchestershire sauce, & 3/4 cup water. Place some on the bottom of the crock pot.

Place onions in crock pot. Cover with browned hamburger patties.

Cover hamburger patties with remaining mushroom soup mix.

Cook on low for 5 hours. Serve with mashed potatoes, noodles, rice, or grits.