Preheat oven to 450 degrees and place a rack inside a baking sheet. If you don’t have a rack, just spray the baking sheet with cooking spray and set aside.

Trim both ends from the zucchini and slice diagonally into ¼"-thick slices. Arrange the zucchini slices in a single layer on the rack or baking sheet. Sprinkle zucchini with garlic salt and flip each piece so that the garlic salt is on the bottom.

Brush tops of zucchini lightly with olive oil and top each slice with Parmesan cheese. Use as little or as much as you would like, then sprinkle lightly with paprika.

Bake 10–15 minutes or just until zucchini is soft and Parmesan is melted and bubbly. Remove from oven and allow zucchini to cool about 5 minutes before serving. Season with additional garlic salt if necessary, then enjoy!