Vegetarian here. My boyfriend eats meat but has cut back on it a lot in the last few years as it is easier to make 1 thing for dinner vs 2 completely separate meals. Here are a few faves that he says are just as good if there were meat in them.
eggplant parm (Similar consistency/ingredients to chicken parm)
black bean burgers On the grill
big salads. Sounds boring but they can be pretty good if add the right ingredients. You said you like rice and beans but are trying to avoid carbs, just add 1 cup of rice and beans to a green salad with some chipotle dressing and you will love it with minimal guilt.
veggie grinders. ( he says most places put so little meat on them that you taste mostly veggies anyways)
I hear you on the carbs, it is very easy to over do it on them if you don’t eat meat. Do you like cauliflower? It is a pretty good substitute for rice or pasta