"Buy it, grab it from the fridge, cook it, sell it, repeat" The first recipe you should do is the Grilled Cheese because you only start with a fridge, an oven and $20
Recipes: Cheese + Bread = Grilled Cheese Flour + Yeast + Water = Dough Dough + Cheese + Tomato = Cheese Pizza Cheese Pizza + Cheese = Extra-Cheese Pizza Cheese Pizza + Pepperoni = Pepperoni Pizza