Heat the oven to 425 degrees.
To prep these baked mini grilled cheese sandwiches, slice the baguette into an even number of slices. Each slice should be about 1/2" in width.
Slice the tomato into enough slices that you have at least once for each sandwich.
Cut the cheese into squares that will fit on our baguette slices. I usually end up using 2-3 cheese squares per sandwich.
Then build the sandwiches. I usually layer cheese, tomato, cheese to get a good melt during baking.
Pop the sandwiches in the oven for 5-7 minutes or until the cheese is melted.