1. Preheat the oven to 220 °C (425 °F).
2. Mix the paprika, coriander, cumin, salt, and pepper in a small bowl and set aside.
3. Place the chickpeas, zucchini, bell peppers, and onions on a large baking sheet, add half of the oil and the spice mixture. Mix everything well and bake for 20 minutes.
4. Meanwhile, brush the salmon with the remaining oil and spice mixture and set aside.
5. Remove the baking sheet from the oven and flip the vegetables. Leave space to place the salmon directly on the baking sheet. Bake again for 10 minutes, or until the salmon is fully cooked.
6. Before serving, pour 1 tablespoon of yogurt over each piece of salmon and sprinkle with chopped mint. Optionally, garnish with a few sprigs of mint and serve directly with lemon wedges.