This side quest is in Santa Luchita and requires you to find 4 ingredients for this lady's greatest cheese (and bean) enchilada. All of the ingredients are found in town but are scattered and each are found by talking to the right people. You will need to find:
- Hot Peppers (Dimension Swap power needed)
Once you collected one of the ingredients, you will need to go to the old lady and hand her each individual item. Once all four are collected, the enchilada will be complete.
Video below is by MainGameProduction and will help you find each ingredient.