Cut zucchini into fries by cutting in half horizontally, then cutting these pieces in half vertically, and in half again vertically.
Trim ends of green beans.
Place fries on a foil lined baking sheet and drizzle with olive oil. Season with salt and pepper and cover with Parmesan and lemon zest
Roast at 400 for 12-15 minutes until vegetables are soft and cheese is crisped. Serve immediately with Lemon Aioli if desired.
Lemon Aioli
Melt butter in the microwave in a measuring cup. Let cool 1 minute then whisk in mayo with a fork until smooth and creamy.
At this point taste and decide if the sauce is too thin, too thick or just right. Add more melted butter or lemon if too thick, more mayo if too thin and more seasoning if necessary. Garnish with lemon zest.