Barriers to entry to the food world keep coming down as entrepreneurs become more creative and consumers become hungrier for something new. If you can’t afford a brick-and-mortar restaurant, start a food truck. Can’t afford the truck either? Pop up in an existing space in their off-hours. If the idea of operating every day is too daunting, do some one-off selling at a grey market. If that’s not your bag, what’s left? Invite strangers into your home once in a while to sell them a meal.