I have made these sandwiches with any kind of cheese - pepper jack, cheddar, Havarti, Swiss, Gouda, you name it - and with sliced tomatoes, jalapenos, black olives, peppers, onions, avocado, bacon, ham, mustard, hot sauce, sour cream, ranch dressing. It really kicks the traditional sandwich up.
I usually pair this with tomato or some other kind of soup. Here's the result of last night's:
I used bacon, cheddar, pepper jack and avocado and grilled on the griddle side of my waffle maker, though you could do it the traditional way on the stove in a skillet or in a sandwich press.
weren't eating enough veggies, my father-in-law blessed us with a HUGE mess of carrots from his garden. He had so many this year they filled up a wheel barrow which sits out in his garage, just like it is in a frig.
And while I had the steamer out, I also steamed up a quick batch of broccoli, then cooked it with butter, a little lemon juice and lemon pepper.