Million Dollar Spaghetti

Name: Million Dollar Spaghetti
Prep time: 10 min
Cook time: 40 min
Total time: 50 min
Cuisine: Italian
Ingredients: 1 tablespoon olive oil; 1/2 cup finely diced onions; 3 garlic cloves (minced); 1 pound lean ground beef; 2 teaspoons Italian seasoning (divided); 3 cups Marinara sauce (divided); 1 pound Spaghetti noodles; Kosher salt (to taste (for the pasta water)); 8 ounces cream cheese (softened to room temperature); 1 cup ricotta cheese; 1 teaspoon garlic powder; 2 cups freshly grated mozzarella cheese