Salisbury Steak - cooking recipe

Ingredients

1 lb. lean ground beef
1 egg white, lightly beaten
1/3 c. chopped onion
1/4 c. saltine crumbs
2 Tbsp. milk
1 Tbsp. prepared horseradish
1/4 tsp. salt
1/8 tsp. pepper
1 (12 oz.) jar beef gravy*
1 1/2 c. sliced fresh mushrooms
2 Tbsp. water
hot cooked noodles

Preparation

*Note: Marie makes the gravy, which I'm certain is much better than the jar variety!