Simple Marinara Sauce

1 Tbsp olive oil
1 medium onion, diced
2 cloves garlic, pressed
1 15-oz can diced tomatoes
1 15-oz can tomato sauce
1 tsp salt
1 bunch fresh basil, sliced into ribbons

In a large skillet, heat olive oil over medium-high heat. Add onion and garlic; saute until onion is translucent. Add tomatoes, tomato sauce and salt. Bring to a boil, then reduce heat and simmer for 15 minutes. Stir in basil. Serve over pasta.