This is a favorite of ours. You can change the ingredients around or use premade hamburger patties, if you like. These can get a little messy so be sure to have plenty of napkins around.
- 2-3 lb. ground beef
- 1 pack Lipton onion soup mix
- hamburger buns
- swiss cheese, sliced (optional)
- 1 large onion, thinly sliced
- 1-2 c. mushrooms, sliced
- 1 c. water or beef broth
- 1/4 c. water mixed with 1 T. cornstarch
- 1 T. mustard (I like to use Dijon)
- 1 T. soy sauce
- salt and pepper, to taste
- olive oil
- small amount of butter or margarine (optional)
Mix together the ground beef and soup mix until mixed well. Shape into patties and cook as desired. Place on buns, top with cheese, and leave the tops off the buns for now.
In a skillet (you can use the one from the burgers if you made them inside) heat the olive oil and a small amount of butter until hot.
Add in the onions and mushrooms and cook until tender. Remove from the pan and set aside.
Add the water or broth to the pan and use a whisk to scrape up any bits on the bottom of the pan. Add the soy sauce and mustard. Season with salt and pepper, if desired.
Once this mixture is hot and bubbly whisk in the water and cornstarch to the pan. Heat 2-3 minutes until thickened.
Add the cooked mushrooms and onions back to the pan. Cook 1-2 minutes until heated through.
Ladle a small amount this mixture over the cooked burgers, add the top of the bun, and ENJOY!