Greek Taverna Style Fava Beans Recipe

1 pound Gigantes, elephant or fava beans
1 28 oz can crushed tomatoes
5 garlic cloves minced
2 onions finely diced or shredded on the microplaner
2 tablespoons tomato paste
2 tbsp olive oil
Feta cheese crumbles to use as topping
Parsley
Salt and Pepper to taste