Slice your zucchini in half lengthwise and then proceed to score the flesh in a criss cross pattern. Sprinkle with salt and let them sit for 10 minutes. Then wipe them of the fluids released and salt.
Preheat your oven to 450° F. or your air fryer to 400° F.
Heat 1-2 tbs olive oil in a large pan on medium. Sear the zucchini flesh down first, for 5 minutes per side.
In a small bowl whisk together 3 tbs olive oil, the minced garlic, thyme, salt and pepper to taste. Brush this mixture on the flesh sides of the zucchini steaks. Sprinkle tops with the grated Parmesan. Transfer them to your oven or to your airfryer and cook for for about 15 more minutes. Remove from oven and top with mozzarella, place back in oven for 1-2 minutes to melt.
Garnish with fresh basil and chili pepper flakes.
Notes
You can use feta at the end instead of the shredded mozzarella.