Is it okay to mix cottage cheese with fruit?

As long as you are not being affected by the little bit of lactose in the cottage cheese (some people have allergic reactions and don't realize it because it manifests only as a puffy face or slight snuffy nose) then I think that is an awesome combination.

We used to do that with yogurt and cottage cheese all the time. Now we just do it with yogurt because I can get soy yogurt but not soy cottage cheese - basically, mix the whole fruit with the cottage cheese or yogurt, let sit in the fridge overnight, next day the entire batch is flavored - naturally!