In a large mixing bowl, sprinkle a pinch of salt over the shaved zucchini and stir until combined. Set aside to sweat for 5 minutes. Meanwhile in a mixing bowl, whisk together the oil and vinegar along with the cilantro and lemon juice. Season with a pinch of pepper to taste. Pour the dressing over the zucchini and stir until combined. Season with salt to taste. Divide between 4 plates and garnish evenly with the avocado, queso fresco, and pepitas.