Sauté onion, celery leaves, and parsley in butter in a large skillet until tender. Add next 8 ingredients; stir lightly.
Stuff mixture into green peppers. Place in a lightly greased shallow baking dish, and bake at 350° for 20 minutes. Top peppers with cheese. Bake an additional 5 minutes or until cheese melts.
Oxmoor House Homestyle Recipes
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