Stove Top Green Bean Parmesan Casserole

INGREDIENTS

1 lb

| 500 g fresh green beans (, rinsed, trimmed and halved)

2 tbsp

butter ((preferably reduced fat))

medium onion (, sliced into thin rings)

1/2 cup

panko bread crumbs

2 tbsp

fresh grated parmesan cheese

1 tsp

kosher salt

2 tbsp

butter ((preferably reduced fat))

medium onion (, diced)

340 g

| 12 ounces mushrooms (, chopped into 1/2-inch pieces)

1 tsp

salt

cracked pepper (, to taste)

1 tbsp

minced garlic ((or 3 cloves))

2 tbsp

all-purpose flour

1 cup

chicken broth or stock

1 cup

skim milk ((or 2% or full fat)*)

1/3 cup

shredded cheddar cheese ((or mozzarella))