01 - Heat olive oil in a large, deep skillet or Dutch oven over medium heat. Add sliced leek and minced garlic; sauté until softened and fragrant, approximately 2 minutes.
02 - Add pasta, vegetable broth, and water to the skillet. Bring mixture to a boil, stir once, then reduce heat to maintain a gentle simmer. Cook for 8 minutes, stirring occasionally to prevent sticking.
03 - Stir in asparagus pieces, sugar snap peas, and zucchini slices. Continue cooking for 7 additional minutes, stirring frequently, until pasta is al dente and vegetables are tender. Most liquid should be absorbed.
04 - Add baby spinach, halved cherry tomatoes, lemon zest, lemon juice, and grated Parmesan. Cook for 2 more minutes until spinach wilts and tomatoes are heated through, stirring gently to combine.
05 - Remove from heat. Season generously with salt and freshly ground black pepper. Sprinkle with fresh herbs and additional Parmesan. Serve immediately with optional lemon wedges.