Pour 2 cups boiling water over the couscous; cover and let stand for 5 minutes. Boil the peas in 1/2 cup water for 1 minute. Drain the peas, reserving 1/4 cup of the water. In a skillet, sauté the zucchini in 3 tablespoons of the olive oil until crisp-tender, about 3 minutes. Season with salt and pepper and let cool to room temperature. In a small bowl, mix the reserved pea cooking water with the lemon juice and the remaining 3 tablespoons of olive oil. Fluff the couscous and pour this dressing on top.
Stir in the zucchini, peas, almonds, scallions, parsley and mint. Season with salt, black pepper and crushed red pepper.