My friend - @bold_rabbit - posted the following on the Challenges board, but I thought some people here might be interested. She started the group a few months ago.
Looking for a small, laid-back group that will encourage you to try a new recipe (or two) each week? Recipes are completely decided by you!
We are a 3 month old group with a small number of friendly regulars. All WOE are welcome. All levels of cooking ability are welcome. Come join to discuss recipes, recipe websites, cookbooks, cooking techniques, ingredients, etc.https://community.myfitnesspal.com/en/group/138454-new-recipe-challenge
Hope to see you there!