Blue Cheese Stuffed Hamburgers Recipe

• 1 1/2 lb Grnd beef
• 1/4 tsp Salt
• 1/3 c. Crumbled blue cheese
• 3 ounce Cream cheese, softened
• 1 Tbsp. Country-style Dijon mustard
• 4 x Onion buns
• 1 1/2 c. Fresh mushrooms, sliced 1/4"
• 2 med Onions, sliced 1/8"
• 1/4 tsp Salt
• 1/4 tsp Pepper
• 1 Tbsp. Worchestershire sauce
• 4 slc Ripe tomato

Directions