Preheat oven to 350-F degrees and prepare a 2-quart glass baking dish.

In a large mixing bowl, combine the beans, chopped onion, Bbq sauce, ketchup, brown sugar, Jalapeno peppers, and steak sauce. You can elect to moderate the "heat" of the completed dish by adjusting the amount of Jalapeno peppers used.

Pour the mixture into the prepared baking dish and bake for 50 to 60 minutes. Remove the prepared beans from the oven and let stand about 15 minutes prior to packing the picnic basket, or refrigerate and take the beans with you when you're ready to go.