Pasta with Skillet Salmon, Mushrooms and Parsley (Greek Island of Crete)

Name: Pasta with Skillet Salmon, Mushrooms and Parsley (Greek Island of Crete)
Prep time: 15 min
Cook time: 15 min
Total time: 30 min
Cuisine: European, Italian, Mediterranean
Ingredients: 1/2 cup extra virgin olive oil; 1 medium onion, shredded; 2 cloves garlic, finely chopped; 1 cup fresh parsley, chopped; 4 salmon steaks (1 ½ - 2 pounds), cut in large cubes; 1 cup diced tomatoes; 1 cup thinly sliced mushrooms; 1 tsp sweet chili flakes; Salt and pepper, to taste; 1 pound dry spaghetti; Shredded Parmesan cheese, to taste