Scrumptious Salisbury Steak in Mushroom Gravy Recipe

Ingredients

• 1 pound ground beef
• 1 egg
• 3 tablespoons crushed buttery round cracker crumbs
• 2 tablespoons finely chopped onion
• 0.5 teaspoon salt
• 0.5 teaspoon pepper
• 0.25 teaspoon poultry seasoning
• 2 (4 ounce) cans sliced mushrooms with juice
• 3 tablespoons butter
• 3 tablespoons all-purpose flour
• 3 cups milk
• 3 cubes beef bouillon