This is an easy-to-prepare classic side dish that my family has made for many years.
3 cans (14.75 oz. each) cut green beans, drained
1 14.75 oz. can mushrooms (stems and pieces), drain 1/2 liquid off
1 small onion, chopped
4-6 strips bacon, cut into 1/4″ cubes
1 tbs. white vinegar
Salt and pepper to taste
Cook the bacon until lightly browned and drain off rendered fat. Add the onion and saute until lightly carmelized.
Add the mushrooms, green beans and salt/pepper to taste after adding each can. (My dad insists that it tastes better this way.)
Add one tbs. vinegar and stir to incorporate. Place in a heavy saucepan or baking dish and cover. Cook on low for about 1 hour until the green beans are just tender.