This is a new addition to Eat This Much. We previously just had the option to favorite foods (with a "heart" icon), but now we're separating favorites into their own thing.
So when you see a recipe you like, give it a thumbs up. If you also want to access it later from the Food Search, click the star icon to favorite it.
If you see a recipe you don't like, click the thumbs down, and we'll try to avoid showing you that recipe ever again in the future.
As more people rate foods and recipes, we'll be able to more intelligently suggest recipes based on what other people like with similar tastes.
Also, if you see a recipe you want to see a lot more, add it as a Recurring Food (with the "pin" icon). This gives you control over what recipes show up, and how often.