Prepare the grill for 350 degree, indirect cooking with apple wood flavoring.
In a lightly buttered 1 1/2-quart casserole, combine green beans, onions, diced pimiento, mushroom soup, and green chiles. In a bowl, combine the topping ingredients and sprinkle it over the top of the casserole.
Place on the grate and smoke, uncovered, for 30 minutes.
