Afraid of expensive can be like this:
For example, 4.5 yuan 1 kg of chilled meat shop has no meat in its bones, and just put a lotus root, which tastes good.
There is also a place that sells fish balls. Fish heads are sold early in the morning and are very cheap. 0.5 yuan is 1 kg. It's also delicious to put some pepper shells and peppers.
Another seashell is very cheap (I can't name it, it looks like a finger). As long as it costs about 8 yuan a catty, it's a little noisy and can be used as a weekend meal.
In addition, when you go to the beef market in the morning, you can buy back the unprocessed beef legs. There is a lot of beef and beef tendon on it, which is cheap and practical. One leg is enough for a family to eat for three or five days, and it tastes really good if it can be cooked.