Steak House Mushroom Burgers with Creamed Spinach Sauce

For the Burgers:
8 oz. button mushrooms, sliced
3 Tbsp. olive oil
1 tsp. minced garlic
1 lb. ground beef
1 Tbsp. soy sauce
1/2 tsp. each kosher salt and pepper
4 slices french bread toasted

For the Sauce:
2 Tbsp. butter
1/4 c. minced onion
2 Tbsp. flour
1/2 c. half and half
1/2 c. chicken broth
kosher salt, cayenne, and nutmeg to taste
4 c. chopped fresh spinach
1 Tbsp. grated Parmesan cheese
1/2 tsp. lemon juice

For the burgers:
Preheat grill.
Saute mushrooms in 1 Tbsp. oil in pan over med-high heat. Cook until mushrooms start to brown. Stir in garlic and cook 1 more minute. Season with salt and pepper. Let mushrooms cool.
Combine burger, 1 Tbsp. oil, soy sauce, and 1/2 tsp. salt, 1/2 tsp. pepper, and mushrooms.
Shape into patties and place on grill. While patties are cooking make sauce.

For the sauce:
Melt butter in saucepan.
Add onion and cook until translucent about 3-4 min.
Stir in flour. Cook 1 min.
Whisk in half and half, broth, salt, cayenne, and nutmeg. Bring to a boil and reduce heat. Simmer for 2 min.
Add spinach and stir until wilted. Mix in Parmesan and lemon juice.

Serve burgers open faced on toasted french bread. Top with creamed spinach sauce and sprinkle with more Parmesan.

This makes 4. Total time 40 min.

Verdict:
These were so good. I do realize that not everyone is a fan of mushrooms but...yum. The sauce is super good just by itself. I would also eat the sauce with some noodles or with some grilled pork. Blake really liked this too. He is kinda wishy washy when it comes to mushrooms but he said that he would definitely want this again. Laney ate a plain patty with no sauce and Gavin ate only one bite (he is a vegetarian of sorts.) We had one patty left over so I ate it the next day...cold. It was still so good.

Picture and recipe from Cuisine at Home grilling