The Food Network is about to launch a true “high concept” television series. Chopped 420 is a spin-off of the popular Chopped series, in which four chefs battle it out through appetizer, main course and dessert stages using picnic baskets filled with challenging foods. As the name of the new series suggests, it will explore cannabis cookery as a basket element. The host will be comedian Ron Funches, and judges include chefs Esther Choi, Luke…