Cut the Colby Jack and Gouda cheeses into small, bite-sized cubes. Then wash the cherry tomatoes and set them aside.
Grab a large platter, ideally shaped like a Christmas tree (or use any large platter and create a tree shape with the ingredients).
Start at the top of the tree with a layer of Gouda cheese cubes.
Directly beneath the Gouda, add a layer of cherry tomatoes.
Follow with a layer of Colby Jack cheese cubes, continuing to build the tree shape as you move downward.
Tuck fresh rosemary sprigs under the Colby Jack layer for a festive, greenery effect.
Continue the pattern: Gouda cheese, cherry tomatoes, Colby Jack cheese, and rosemary sprigs until you reach the bottom.
Finish off the tree with an extra touch of fresh rosemary at the base.