Pre sell evening meals (2 seatings) to take the risk out, and create some scarcity. Advertise to local businesses and "the lunch crowd" for Lunch time seatings. Sell your rubs and sauce to any walkins, and pre-sell them for the following week. Change your menu offering often to keep folks coming back to try new things.
Rancho To Go BBQ Catering
Spicewine BBQs - West (Left) Coast
Large Spicewine - Ol' Blue
Twitter - @ranchoagogo @ranchotogobbq