I've never considered cottage cheese salty. I always thought of it as rather neutral because it's great with both fruit (like strawberries) or veggies (like tomatoes). I also love it in scrambled eggs, it gets all gooey and cheesy.
Stephanie, what I do to add it to tuna is to put cottage cheese, Greek yogurt, and some spices in the food processor and whirl it until it's sorta the consistency of mayo, and then stir it up with a can of tuna. And I eat it with either gluten-free pretzels or Nut-Thins.
Hooray for cottage cheese!