Slow Cooker Salisbury Steak

Ingredients

• 1 teaspoon salt
• 2 lbs ground beef
• 1 tablespoon olive oil
• 2 tablespoons chopped fresh parsley
• 1/2 teaspoon McCormick black pepper
• 2 tablespoons water
• 1 tablespoon cornstarch
• 1/2 cup beef broth or water
• 1/2 cup panko breadcrumbs
• 1 12 ounce container McCormick Simply Better Beef Gravy
• 8 ounces sliced mushrooms
• 1 teaspoon McCormick garlic powder
• 1/4 cup milk
• 1 small onion
• 1 teaspoon McCormick onion powder