Chili. Good over brown rice (I make a bunch once a week and keep that in the fridge too), over a baked potato, with some veggies and nutritional yeast in a burrito, or with a side of crackers or bread with spread.
Garbanzo bean salad (a lot of people call it mock tuna) and/or hummus for sandwiches.
Tomato sauce - homemade this time of year but jarred will do. Toss this with extra spices in with canned beans and some of that refridgerator rice and you've got beans and rice. Dump some and some canned beans over a packet of cooked spaghetti squash (I keep these in the freezer) and it's veggie spaghetti.
Tofu. Add some veggies from the freezer and an envelope of sauce mix, dump it over some rice and you've got a quick stir-fry.
I also keep meal-sized freezer bags of leftovers and substantial soups/stews in the freezer for when I don't feel like cooking. And the odd faux meat in the freezer too, for the same purpose.