Preheat the oven to 350 degrees. Coat a 2-quart casserole dish with nonstick cooking spray.
In a large bowl, cream together all the ingredients, except for the topping, using a potato masher or mixer until all of the ingredients are well blended. Transfer the mixture to the prepared dish and sprinkle it with the praline topping (see recipe).
Bake for 40-45 minutes, or until thoroughly heated and topping is brown and crumbly.
In a large bowl, mix together the brown sugar, flour, and cinnamon. Stir in the butter, vanilla, and pecans until the micture becomes crumbly.