If you are a proficient cook, one option would be to hold classes...you can do a series of classes one with chicken, one with beef, one with seafood or pick different types of cuisines and teach how to prepare things healthy. Rather than just charging a fee for teaching also buy food and ingredients for each participant to cook and make a profit on the food as well... If you can get chicken wholesale bulk for $1.99/lb and you have some gamer and stuff for sauces, maybe add an extra $2.50 - $4 per dish, so your cost would be say, tops $6-$7... Now it would be easy to charge $50 for that, but the unknown is the cost of the kitchen... I'd say charge $75 and market it as gourmet healthy cuisine, improve performance and delight your palate