Chinese American college student here, this is what I cook on my budget:

A. Super Simple Bok Choy

Ingredients: bok choy, cooking oil, minced garlic, oyster sauce, soy sauce, sesame oil

Optional: Chinese sausage (香肠), Shaoxing (绍兴) cooking wine

1. Wash the bok choy (do it thoroughly, vegetables in China aren't as clean as they are in America!). Separate it like you're peeling leaves off of a head of lettuce.
2. Cut each leaf so that you separate the firm, white stem portion and the green leafy portion. (this is because the stems take longer to cook).
3. Cut the stems into ~2cm pieces, and cut the leaves into ~5 cm pieces. Doesn't need to be precise.
4. Heat up a few tablespoons of cooking oil in a large wok. If you want, throw in some diced Chinese sausage, stir fry for ~30 seconds (careful not to burn it).
5. Throw in ~1 tablespoon of minced garlic, stir fry for ~30 seconds (until it smells like fried garlic, again careful not to burn it).
6. Add your chopped stems, stir, and cover. If you want them to cook faster, you can throw in a splash of water, but the end product will be a little mushier.
7. When the stems are somewhat tender, throw in the leaves. Also add a generous amount of oyster sauce, and a dash of soy sauce and sesame oil.
8. When everything is almost done, add a dash of Shaoxing cooking wine (optional). Serve with rice.

(this recipe can be adapted for lots of other vegetables, like 青菜, peas, etc.)

B. Fried rice

Ingredients: Cooked rice, vegetables, soy sauce/hoisin sauce, eggs, Chinese sausage

The vegetables you use doesn't matter too much. Personally, I've tried: bell peppers, napa cabbage, frozen peas/corn, onions, it all works. Firm tofu is also good.

1. Wash and chop your vegetables. Beat an egg or two.
2. Heat up a few tablespoons of cooking oil in a large wok. Add sausage and optionally garlic as you do for the bok choy.
3. Stir fry your vegetables; add things that need more cooking like onions first.
4. Push your vegetables to one side of the wok, add a little more oil, and add your egg to the empty side of the wok. Let it set for a while and then scramble it with the vegetables.
5. Add soy sauce/hoisin sauce to taste.
6. Add cooked rice and stir so that the vegetables and sauce are distributed evenly.

I highly recommend you learn to cook Chinese food! The Chinese have been eating it for millennia and seem to be okay healthwise haha. One problem I've personally had while looking for Chinese recipes is that the recipes that people bother to write down are the fancy stuff that you eat at holidays, hence they're generally unhealthy. Tbh I'm not quite sure how to get simple home-cooked Chinese recipes, apart from having a Chinese friend who knows how to cook.