Preheat the broiler to 500°F. Toss the asparagus and zucchini with 1 tablespoon of olive oil and a pinch of sea salt in a mixing bowl until combined. Spread the vegetables onto a large rimmed baking sheet.
Broil the vegetables for 10 minutes, stirring them as they roast, or until tender and golden brown on the edges.
Add the pitted avocado, basil leaves, pumpkin seeds, garlic, lemon juice, olive oil, salt, and pepper to the bowl of a food processor. Blend until creamy. If desired, add water or more oil to thin the dressing or season to taste with more salt.
Toss the avocado dressing with the cooled pasta. Gently fold in the roasted veggies, tomatoes, and remaining cubed avocado. Garnish the salad with fresh basil leaves and cracked black pepper and serve.