Note: I used 2% milk in these, but I think you could substitute another kind without issue. The corn does tend to fall out everywhere when you cut into them. I liked the sweet bursts of corn, but if you’re going to take one on the go you might want to leave it out, or at least cut back on the amount! Parmesan would be a good substitute for the asiago cheese. If you'd prefer one large frittata, I think this would work well in a 9 inch pie plate as well, the baking time should be about the same, but it might need a little longer.