Heat olive oil in a skillet over medium heat and cook onion and garlic until softened, about 4 minutes. Add zucchini, saffron, cumin, turmeric, salt, and pepper. Cook and stir until zucchini are softened but still firm to the bite, about 8 minutes. Remove from heat and allow to cool.

Drizzle zucchini mixture with lemon juice and season with salt and pepper. Sprinkle with mint. Serve chilled or at room temperature.