The one we made this weekend included kale, tomatoes, and Parmesan cheese. You can really combine any ingredients you want -- we have made them with all different vegetables(spinach, basil, kale, collard greens, tomatoes, onion, mushrooms) and meats (we've used pancetta, bacon and salami), but usually try to mix ingredients that will go well together. I like using a nice hard cheese like Parmesan or Gruyere as well.
The prep work isn't too bad, you just don't want the ingredients to be too different in size or they may cook unevenly. You don't want a raw squash cube and a mushy mushroom. |
Super colorful! |
Action shot. Ignore my pink bathrobe in the background. |