Step 1

In a large bowl, combine the beef, salt, bread crumbs, onion, celery and eggs. 1 1/2 pounds lean ground beef, 1 teaspoon salt, 1/2 cup bread crumbs, 1 tablespoon finely chopped onion, 1/4 cup chopped celery, 2 large eggs

Step 2

Mix well, then shape into 8 patties.

Step 3

Heat the oil over medium heat. Brown the hamburger patties on both sides. Don't worry about cooking them through as they will continue to cook in the oven. Place the browned patties in a casserole dish.2 tablespoons olive oil

Step 4

Preheat the oven to 325ºF.

Step 5

In a small bowl, whisk together the mushroom soup and the water. Pour the soup mixture over the patties. 21 ounces condensed cream of mushroom soup, 1/2 cup water

Step 6

Cover and bake for 40-45 minutes or until heated through and bubbly. Serve over mashed potatoes, rice or noodles.