The lowest rack position is closest to the heating element inside the toaster oven. You may want to confirm the location of the heating element, though, since some toaster ovens may vary. [2] X Research source Preheating the baking sheet creates a “mini griddle” that will result crisp, golden brown bread.

Consider using hearty multigrain bread instead of white bread, since it crisps up better and contributes more flavor. Ciabatta and brioche, while not quite as healthy as multigrain bread, are also delicious options![4] X Trustworthy Source Consumer Reports Nonprofit organization dedicated to consumer advocacy and product testing Go to source

A hard cheese, like cheddar or Swiss, cut into standard or semi-thick slices is ideal. Slices of cheddar or Swiss work great. You can also mix cheeses, if you like. [6] X Trustworthy Source Consumer Reports Nonprofit organization dedicated to consumer advocacy and product testing Go to source Avoid using shredded cheese, since it will melt too quickly and create a mess.

The cheese should be melted once both bread slices are nice and golden. The melted cheese “seals” the sandwich together. If the sandwich doesn’t look quite done yet, put it back into the toaster oven in 1-minute intervals.

Round out your meal with your favorite chips, chopped veggies, sliced fruit, or your favorite soup. [12] X Trustworthy Source Consumer Reports Nonprofit organization dedicated to consumer advocacy and product testing Go to source

If you want to ensure a super crispy sandwich, preheat a baking sheet in the oven and cook the sandwich on that instead of the rack. [14] X Research source

You’ll know the oil is ready when it starts to shimmer. This usually takes about 3 minutes.

You can use any kind of bread you like, such as whole-grain or multi-grain. You can also use cheese other than Swiss, if you prefer, like white or sharp cheddar.

This gives the cheese a chance to fully melt and helps ensure a golden, toasty finish for your bread slices.

Use a spatula to lift up the bread and check how browned it is.

Give the sandwich a few minutes to cool down before digging in! The cheese will be very hot. Serve the sandwich with healthy sides like chopped, raw veggies or a side salad with your favorite dressing.