Greek yogurt, egg white omelettes, protein bars, make pancakes out of the protein powder and eat with sugar free syrup. And if you have the money for it you can buy protein candies, jellos and even ketchup!

Try yogurt that is low in sugar,Cottage and or Ricotta cheese .Try Nova lox salmon [cold smoked]
Check out Bariatric foodie on line also for yummy stuff. I hope this is helpful .Oh, add some cinnamon or nutmeg to protein shakes or add coffee.

I make sure to have 2 shakes a day. I just play with them.
Before surgery, I LOVED iced coffees. Sweet sweet, iced coffees. Now I have 1 cup of coffee split between 2 shakes during the day. I add a tad unsweetened almond milk, vanilla protein powder, and ice and voila! Not a bad iced coffee. Sometimes I put cinnamon and nutmeg in it. Other times I use sugar free flavored syrups. Sometimes I add a tiny bit of low fat whip cream to the top and sprinkle that will cinnamon and splenda.
I also LOVE fat free greek yogurt blended with fruits, half a serving of 15 calorie lemonade, sugar free popsicles, etc... whatever I'm craving at the moment.
I also use unflavored protein powder in foods that I eat with sauces. I don't always use an entire scoop, but just using a bit here and there really adds up to help you get in your needed amount.

I am not sure how far out you are or where your diet is now...but greek yogurt and cottage cheese are great ways to add protein. Also, play with your shakes. I have learned to make some that are so good even my hubby likes to drink them. I am at the point now where I eat most of my protein and usually only have shakes when I have a hard workout or I just havent eaten enough. With food I stick to a lot of greek yogurt and fish and shrimp are pretty high in protein and tend to go down really easily. My doc is happy with 80-100gm protein a day when working out and I have no trouble getting that most of the time.