First, analyze it from the perspective of the list of ingredients. It is possible that the greens you chose are not of good quality or have been stored for too long, causing the fibers of the greens to become soft and difficult to cook. In addition, it is possible that you are using a cooking method that is not suitable for cooking the greens, making them not get enough heat and cooking time.
The next step is to look at it from the point of view of the preparation steps. If your cooking time is not long enough, or if the heat is not properly controlled, it could cause the greens to not cook properly. Also, if you don't add enough water to the greens or open the lid of the pot frequently during the cooking process, it can also cause the greens to undercook.
To cook better greens, you can try the following:
1. Choose fresh, green greens and try to avoid greens that have been preserved for too long.
2. When cooking the greens, add some alkali which can speed up the cooking of greens.
3. Control the cooking time and heat to make sure the greens get enough heat and cooking time.
4. Add enough water during the cooking process of the greens and try to avoid opening the lid of the pot frequently during the cooking process.
In short, to cook good greens, you need to choose good greens, get the cooking time and heat right, and follow the right preparation steps.