Toss together the grape tomatoes, oil, oregano and a pinch of salt on a rimmed baking sheet. Roast for 12 to 15 minutes, or until the skins begin to wrinkle and move away from the flesh. Remove from the oven and let the tomatoes cool slightly.
Place the zucchini noodles in a large serving bowl.
Whisk together the lemon juice, olive oil, lemon zest, and garlic; pour it over the zucchini noodles and toss to coat. Add the roasted tomatoes and pine nuts and serve.