What is it about high protein foods that is gross to you?
You didn't say you were some form of vegan.
Is it taste, texture, smell? Or is protein foods bothering you digestivley some way?
I find it hard to believe that all high protein foods seem yuk to you.
Don't want meat, dry edible beans are a good alternative and very versatile. Don't like nuts, chop them up and add in small doses, eggs are very versatile, boil, chop up and add to something. What about tofu? Tuna salad? Salmon patties? Seasoned shrimp kabobs? YUM! Low fat cheese! Low or fat free cottage cheese, Greek yogurt?
There are a lot of options, and sometimes, we just need to suck it up and go beyond our comfort zone and try new things.
Thankfully my DH has been supportive in this journey, and sometimes new things were good and sometimes, it wasn't fit for the dog!