Tuscan Salmon

4-Salmon Filets
2 tablespoon olive oil
2 tablespoon butter
6-garlic cloves
1/2 white or yellow onion
1/3 dry white wine (optional)
8.5 ounces of sun dried tomato
1 3/4 cup half & half
3 cups spinach
1/2 Parmesan
1 Teaspoon cornstarch
1 tablespoon parsley