Fill a large pot with water and bring it to a boil.

Add salt to the boiling water.

Add the spaghetti to the boiling water and cook according to package instructions until al dente, about 8-10 minutes.

Once cooked, drain the spaghetti in a colander and return it to the pot to keep warm.

In a large skillet, heat the olive oil over medium heat.

Add the diced onion and sauté for 3-4 minutes until translucent.

Stir in the minced garlic and cook for an additional minute until fragrant.

Add the ground turkey to the skillet and cook until browned and no longer pink, about 5-7 minutes.

Stir in the crushed tomatoes, oregano, basil, salt, pepper, and red pepper flakes.

Let the sauce simmer for about 10 minutes to meld the flavors.

Add the cooked spaghetti to the skillet with the turkey sauce and toss everything together until well combined and heated through.