Servings: 4

8 ounce package penne pasta, uncooked 8 ounce package penne pasta, uncooked
1 cup sliced mushrooms 1 cup sliced mushrooms
¾ cup canned diced tomatoes, drained ¾ cup canned diced tomatoes, drained
5 tablespoons olive oil 5 tablespoons olive oil
10 ounce package fresh spinach 10 ounce package fresh spinach
3 tablespoons balsamic vinegar, or more to taste 3 tablespoons balsamic vinegar, or more to taste
8 ounce package crumbled feta cheese 8 ounce package crumbled feta cheese

Cook pasta according to package directions; drain.
Meanwhile, in a skillet over medium-high heat, sauté mushrooms and tomatoes in olive oil until mushrooms are tender.
Lower heat to medium; add spinach and balsamic vinegar.
Cook, stirring often, for a few minutes until spinach cooks down.
Mix in feta cheese and pasta.