Yummy Southern Style Green Beans

1 (16 ounce) bag frozen green beans, or 2 (14 oz) cans green beans
4-6 slices bacon
1 large onion
1 dash red pepper flakes (optional)
salt and pepper

Place green beans in saucepan- if using canned add the liquid, if using frozen,then add water, enough to see but not to cover beans completely- cook on medium heat.
Fry bacon until cooked, but not too crisp- drain on paper towel.
Cut onion in large (thick) slices and break rings apart , add to beans.
Crumble or rip bacon apart ,add to beans.
Add spices to taste.
Let cook for a few hours on low heat.
If want to serve sooner- turn heat up and cook until water boils down.
OR if you prefer can always put in a crockpot on low all day long and let simmer.