Preheat oven to 350 degrees.
Cook bacon in a large nonstick skillet over medium-high heat until crisp. Remove bacon from pan, reserving 1 tablespoon drippings in pan, and set bacon aside. Add onion to drippings in pan; saute 3 minutes.
Combine bacon, onion, and remaining ingredients in a large bowl; toss well. Spoon the bean mixture into a 13 x 9-inch or 2 1/2-quart baking dish coated with cooking spray. Bake at 350 degrees for 45 minutes. 20 servings. (Cooking Light)