These flautas are best served right out of the fryer, however, they reheat and re-crisp really well on a sheet pan in a 350º oven for 15-20 minutes. I also freeze any extras and reheat from the freezer, giving them a bit more time in the oven, 20-25 minutes. Serve with Avocado Tomatillo Dipping Sauce and sour cream if desired. The black bean filling is also great as an enchilada filling, a dip with chips or addition to nachos.