A CUP OF JO: Grown-Up Grilled Cheese Sandwich - her recipe includes caramelized onions and kale. I've never tried kale, but I like the idea of caramelized onions. How does roast beef, American cheese, and caramelized onions sound?
Grilled cheese with gouda, roasted mushroom and onions. Roast mushrooms and onions with olive oil about 20 minutes. Layer shredded gouda on bread, then mushroom/onion mixture, then gouda. Top with bread and fry like grilled cheese.