Heat 1 tablespoon of olive oil in a large skillet over medium heat.
Add the minced garlic and cook for about 1 minute, until fragrant.
Add the sliced zucchini and bell pepper to the skillet. Stir-fry for about 5 minutes, or until the vegetables are tender-crisp.
Push the vegetables to one side of the skillet. Add the remaining tablespoon of olive oil and the shrimp to the skillet. Cook for about 2-3 minutes per side, or until the shrimp are pink and opaque.
Squeeze the juice of 1 lemon over the shrimp and vegetables, and sprinkle with lemon zest.
Season with sea salt to taste and stir everything to combine.
Garnish with fresh parsley before serving.