Heat olive oil in a dutch oven or large skillet.
Saute onions until translucent, about 10 minutes.
Add minced garlic, saute for a minute or two.
Add white wine, scrape pan to deglaze.
Add crushed tomatoes, red pepper, basil, salt, oregano & parsley.
Simmer, covered, for 15- 20 minutes, stirring occasionally.
Taste, add additional red pepper if more heat is preferred.
Add sardines. Simmer over low heat for 10 minutes.
Salt & pepper to taste if necessary.
Serve over cooked spaghetti or linguine. Enjoy!