Creamy Tuscan Chicken

Ingredients

• (6-ounce) boneless skinless chicken breasts (4)
• Italian seasoning (1 teaspoon)
• freshly ground black pepper (1/2 teaspoon)
• olive oil (3 tablespoons)
• garlic cloves, minced (4)
• finely chopped yellow onion (1/4 cup)
• sun-dried tomatoes, thinly sliced (1/2 cup)
• baby spinach (2 cups)
• heavy cream (1 1/2 cups)
• freshly grated parmesan (1/4 cup)