Steam the green beans using either a microwave steamer or a stovetop steamer basket OR bring a pot of water to a boil and boil for 8 minutes, then drain. Set green beans aside.
In a large dutch oven, spray with cooking spray and added onions. Cook until soft. Add mushrooms and cook a few more minutes.
Add fat-free cream of mushroom to the pot, stirring to combine ingredients. Add cooked green beans and stir until they are coated with mixture.
Spread the mixture in a 8x8 casserole dish. Sprinkle with fried onions. Bake for 10 minutes. Let cool before serving.
Notes
*Pair this with a lean protein entree.*Serving sizes on the recipes are not necessarily "bariatric sized" portions but are "traditional" portion sizes.