Frittata with Mustard Greens

I adapted this from a Frittata with Mustard Greens and Fontina recipe from Bon Appetit. I didn't have any fontina so I threw in half a cup of goat cheese instead. Everything in this recipe took longer than claimed; the mustard greens took a long time to wilt, the frittata took a long time to set under the broiler, etc. I also used five eggs instead of four and still didn't think that was enough egg to cover the greens, but maybe my bunch was too large. Other than the fact that I didn't like the taste, it's a good recipe, since it's very easy, uses up a bunch of hard-to-use greens, and the man-thing seemed to like it very much. Next time I'll use even more cheese, that might redeem it for me.