If you have cooking conditions and time permits, you can cook by yourself. The characteristics of the food in the restaurant are that the oil and water are generally too high, and it is easy to get fat if you eat too much, and the sanitary condition is difficult to grasp.
When summer comes, I will eat bread+milk, cereal+soybean milk or milk, eggs and so on. Breakfast, an apple or banana; Solve it at the lunch unit; In addition to the above, you can also buy some raw vegetables, such as tomatoes, cucumbers, dipped in tomato sauce or bean paste, peanut butter, which not only supplements vitamins, minerals and dietary fiber, but also does not consume too much fat. Of course, this may be "difficult" for others, but it actually represents a healthy lifestyle.
If you want to start a meat-free diet, you usually eat eggs, and then go out to eat next time when you want to eat meat, thus balancing the nutritional balance and economic expenditure.
I hope it works for you.