In a large skillet, add 1 tbsp olive oil and bring to medium high heat. Add in zucchini and cook until zucchini releases water and is tender but still crisp. Drain water from zucchini. Place zucchini in a strainer and shake a few times to drain out more water.
Pat dry zucchini noodles and add back to skillet. Add in tomatoes, tomato sauce, oregano and basil. Bring sauce to a simmer. Stir in parmesan cheese, 1/4 cup mozzarella cheese and 1/4 cup mini pepperoni. Cook until cheese is melted and zucchini is evenly coated in sauce.
Reduce skillet to low heat. Sprinkle remaining mozzarella cheese across the surface of the zucchini. Place remaining pepperoni on top of cheese. Sprinkle with parsley. Cover skillet with lid until cheese is melted. Remove skillet from heat and serve.
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The nutrition information provided are only estimates based on an online nutritional calculator. This is not a comprehensive list of all the nutrients in the recipe (i.e., does not include vitamins, cholesterol, etc). I am not a certified nutritionist. Please consult a nutritionist or doctor for accurate information and any dietary restrictions and concerns you may have.