Creamy Spinach with pasta

itemscope itemtype="http://data-vocabulary.org/RecipeIngredient"> 2 cups cherry tomatoes, halved Cooking spray 4 teaspoons olive oil, divided 1/2 teaspoon[...]

3 cups rigatoni pasta 1 lb Italian sausage 1 cup chopped onion 14 1/2 ounces diced tomatoes with basil and oregano 10 ounces frozen creamed spinach , thawed 8[...]

1 lb penne pasta 1 tablespoon olive oil 1 cup red onion , diced 2 garlic cloves , minced 8 ounces baby portabella mushrooms , sliced 1 1/2 cups frozen chopped[...]