Start by removing the broccoli florets from the stem and rinse under running water.

Steam the broccoli florets and stem pieces for about 10 minutes.

Transfer the steamed broccoli into a bowl, mash them, and add oat flakes, crushed garlic cloves, grated mozzarella, eggs, salt, and black pepper. Mix well.

Shape the mixture into croquettes and place them on a baking sheet lined with parchment paper.

Brush the croquettes with olive oil and bake in a preheated oven at 200°C for approximately 20 minutes.

Prepare the yogurt-based dressing by combining yogurt, crushed garlic cloves, lemon juice, parsley, salt, and black pepper. Mix thoroughly.

Serve the baked broccoli croquettes with the prepared dressing.