I don't know if this helps but it helped *me* -- try not to think of a meal as a protein main + a veg side or salad + a starch side. That's the way a lot of us grew up and it's like putting square pegs into round holes when we're trying to eat new and different things.
A meal is a pot of soup or chili and a corn muffin. Or a baked potato with a lot of stuff on it. Or a stir-fry or curry. Or nachos with black beans. Or sammiches or tacos. A meal doesn't have to be individual pieces - sometimes visualizing meals differently is more than enough inspiration to get over a rough patch.
It sounds like you're really comfortable cooking and that's a huge advantage. Perhaps look for recipes or ideas that are less traditional, more one-pot style (or one frying pan or one baking dish). The bonus is making a big batch of something is great in a pandemic because of abundant leftovers.
Are you grocery shopping much these days? You can turn a big pot of red beans into tacos, jambalaya, and homemade burger patties in the same week. Boil a pound of penne pasta, mix it with with a white sauce, veggie sausage, assorted diced veggies, cheese on top, and bake that thing. Split pea soup with liquid smoke for the "bacon" flavor everyone craves with homemade biscuits. Big pot of risotto, with pesto made from that spinach and some roasted chickpeas.
Well, I think I'm going to go cook something for dinner...good luck, you're on the right path. <3