I like to mix a few big tablespoons of cottage cheese, the same of salsa, and a can of tuna. I eat that three times a week, and love it every time. I also like to mix 2 cups water, 1 cup cottage cheese, 1 cup plain yogurt, a couple of scoops of vanilla protein, and 1 cup of frozen fruit to make a very nice protein smoothy. You can add greens powder, milled flax, or other good for you but not exactly delicious stuff, and the fruit and yogurt make it all very drinkable.
That spinach dip sounds great. I'm definitely going to try that!