We are mostly vegan so I don't know how much will apply for you, but here are our standard go-to meals:
* Veggie chili (beans, sundried tomatoes, corn, etc.) - over brown rice, ww noodles, or in taco salads (great way to use leftovers - brown rice one night, taco salads the next!)
* Linguini or ww noodles with peanut sauce (great way to use up leftover veggies - throw anything you want in!) We use the Epicurious Cold Sesame Noodle sauce (google it - it's amazing).
* Salad bar night: romaine, spinach, beans, corn, avocado, croutons, whatever's about to go bad in the fridge - put it out, everyone makes their own. You can also do a baked-potato or baked-sweet-potato bar with similar toppings. Kids love "make your own" nights!
* Summer rolls: we do rice noodles, tofu, avocado, cilantro but you can throw anything you like in those rice-paper wrappers. Dip in peanut sauce or something similar.
* Indian food: I often make a big pot of dal makhani or something similar. We eat over rice.
* Stirfry: tofu, broccoli, heck anything you like! I love those frozen green beans at Trader Joes. Sautee everything, dump some Soyaki on top, eat in tortilla wraps or over rice.
* Veggie burger night: burgers with previously-frozen crinkle-cut fries. Love the classics.
* Sweet potato burritos. Sounds wacky but google it. Delicious.
* Falafel night - sometimes homemade, sometimes out of a box. Serve on tortillas w/tomato, cucumber, tahini.
* Classic spaghetti w/sauce - sometimes red sauce, sometimes vegan pesto. Serve with salad and bread.
I make a meal plan on Sundays based on what we have in the house. Then I just have to shop for the things we need to finish that meal plan and I'm good to go for the week. We average about $125/week for four big eaters. Hope this helps!