I often cook, and eggplant and potatoes are one of my favorite dishes. I'm telling you, my cooking may not be so accurate, but it's the most real. Anyway, I have never seen cooking weighing, and the proportion of various dishes is entirely based on experience. Mainly the steps.
Eggplant is my favorite. Secret: You must have more oil and fry potatoes for a long time. You should pour more oil first, and then add potatoes and eggplant. Don't turn it over often. When the potatoes are golden brown and the eggplant is soft, take it out. If there is a lot of oil in the pot, you don't need to pour it, because carrots, onions and green peppers don't eat oil. Stir these ingredients and take them out. You can add onions, ginger and garlic to stir-fry the fragrance, then add potatoes first and less salt. According to what you said above, you must add soup to this dish. You can add broth or water, not too much, cover it, stew it a little, and then add other ingredients together. Add some seasoning according to your own preferences, and the soup is almost dry.
It should be noted that once you are taught by others, you may not be able to do it well. You need to try and practice it yourself. I have a gift for cooking. Even if I don't follow the recipe, it's delicious I'll teach you how to cook saute spicy chicken, curry beef, and stir-fry tomato boxes when you are free.