Stuffed Green Peppers with Walnut Rice

6 green peppers
1 cup olive oil
2 onions, chopped
1 tablespoon parsley, chopped
1 teaspoon marjoram
2 teaspoons salt
1/2 teaspoon ground black pepper
4 tomatoes, chopped
2 cups cooked brown rice
2 tablespoons chopped walnuts

Wash peppers and cut off and retain the tops, remove seed and pulp and discard
Heat oil in a pan and gently fry the onion for 2 minutes, sprinkle on the herbs & salt & pepper
Add tomatoes and fry together for 2 minutes
Add cooked rice and nuts and fry together for 2 minutes
Fill each pepper with the cooked filling, place on a baking sheet & put on the caps
Pour a little oil on each and bake until the peppers are browned