Bring a large pot of salted water to a boil.

Clean and prepare your mixed seafood while the pasta cooks.

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

Add the minced garlic and red pepper flakes, sautéing until fragrant, about 1 minute.

Add your seafood to the skillet, cooking until the shrimp turns pink and the mussels begin to open, about 3-5 minutes.

Carefully add the white wine or seafood broth, bringing it to a simmer.

Once the spaghetti is cooked and drained, toss it into the skillet with the seafood.

Mix in the parsley, lemon juice, and zest, adjusting with salt and pepper to taste.

Serve your seafood spaghetti hot, garnished with extra parsley if desired.