Add the olive oil to a large skillet over medium-high heat. Add the garlic and onion, then sauté 6 to 7 minutes until the onions start to brown. Add the zucchini, Italian seasoning, red pepper flakes, salt and pepper, then continue to cook for another 6 to 7 minutes.
3 tablespoons extra virgin olive oil, 3 cloves garlic, minced, 1 red onion, diced, 4 medium zucchini, diced into 1 inch cubes, 2 teaspoons Italian seasoning, ½ teaspoon dried red pepper flakes, 2 teaspoons kosher salt, ½ teaspoon ground black pepper
Once the vegetables are tender enough to be pierced gently with a fork, add the tomato paste and tomatoes and stir together. Heat until the tomatoes start to break down slightly and are heated through, 4 to 5 minutes. Remove from the heat and mix in the lemon juice and cheese. Serve immediately.
2 tablespoons tomato paste, 1 pint cherry tomatoes, halved, 1 tablespoon lemon juice, ¼ cup Parmesan cheese, grated