To change ingredients in a meal, start by identifying the key components of the dish and considering what substitutions would be appropriate. For example, if a recipe calls for butter, you could try using a healthier option like olive oil or avocado oil. Additionally, if you have any dietary restrictions or preferences, such as being vegetarian or gluten-free, be sure to choose ingredients that align with your dietary needs. Experiment with different ingredients to find combinations that suit your taste and nutritional goals. Remember, small changes can make a big difference in the overall healthfulness of a meal. 

Let me know if you need help with any specific ingredient substitutions or recipe modifications!