Add the onion, oregano, red pepper flakes and sea salt. Saute until the onion is slightly translucent and fragrant, 3-5 minutes.
Add the garlic. Give it a stir and sauté for about 45 second to a minute or until fragrant.
Add the tomatoes and reduce the heat, bring to a gentle simmer. Simmer for about 10 minutes. Season with salt and pepper to taste.
Remove from the heat and stir in the fresh basil. Toss a few spoonfuls of the sauce with the cooked gnocchi, top with additional fresh basil, red pepper flakes and shredded cheese, if you’d like.