This Salisbury Steak is "Lick-the-Plate" Good

Ingredients

• 1 lbs Ground beef
• 1 tbsp. Tomato paste
• 1 Eggs
• 1 tbsp. Ground mustard
• 2 tbsp. Worcestershire sauce
• 1/2 tsp. Garlic powder
• 1/4 cup Breadcrumbs
• to taste Salt
• to taste Ground black pepper
• 2 tbsp. Butter
• 1 large (about 2 cups) Onion
• 2-3 tbsp. Flour
• 1/2 tsp. Thyme
• 1 1/2 cups Beef broth
• 3 tbsp. Parsley