Step 1: Spiralize the zucchini into long strands. Place them in a colander, sprinkle with a little salt, and let sit for 10 minutes to draw out moisture. Pat dry with paper towels.
Step 2: In a large skillet, heat the olive oil and butter over medium heat until the butter is melted.
Step 3: Add the minced garlic and red pepper flakes to the skillet. Sauté for 1 minute until fragrant, being careful not to burn the garlic.
Step 4: Increase the heat to medium-high and add the zucchini noodles to the pan.
Step 5: Sauté the noodles for 2-3 minutes, tossing frequently with tongs until they are just tender but still firm.
Step 6: Remove the skillet from heat. Stir in the lemon juice, lemon zest, Parmesan cheese, and fresh parsley.
Step 7: Season with additional salt and black pepper to taste and serve immediately.