Hi jackie

I'm single, so I cook and freeze everything. That way I have some variety in what I eat. When I cook, I portion my food out into 1-2 servings, then freeze it.
You can make meatballs, and can even freeze in some marinara sauce with it. You can cook ground beef with spicy taco seasoning, sometimes I put this over lettuce dollop sour cream on top add in a tomato or avocado. It makes a good taco salad. You can cook and freeze salmon too. Sometimes I'll cook a ribeye steak, then cut it into thinish slices then freeze it. It makes a great topping for salads, throw in some boursin, blue, or gargonzola cheese and you have a gourmet salad.

(The cheese and steak flavor everything so no need for dressings.)
But my one of my favorites is bacon. I've actually gotten to where I kind of like frozen (cooked) bacon.

Primarily I just don't like my house smelling like bacon all the time, but the side benefit is that when I have a hankering for a slice, then I can just grab one and nibble away.
Good luck with the surgery!!