The nopales are a bit mucilaginous. A little bit ewww. But i would think you could do these things -
- make fritters
- make as you would eggplant parmesian
- make like chicken cutlets
- add to other things in chopped up amounts - i know in mexico they add them to egg dishes. huevos rancheros,omeletes or frittatas.
- maybe they would work in stir-frys
- maybe cook them as one would do with okra? I know okra is even slimy-er.
