Preheat oven to 375°F
Lightly Grease 2 quart baking dish.
Mix together vegetables, mayonnaise, sour cream, cooked rice, green pepper, onion and dried dill.
Mix in Tuna.
Place in Greased baking dish.
In a small saucepan, melt the butter, add the bread crumbs and heat just until combined, then spoon on top of the tuna mixture in baking dish.
Bake (uncovered) in oven for 30 minutes or until hot and lightly browned on top and around the edges.