White Bean, Spinach, and Barley Stew

1 cup uncooked pearl barley

3 cups water

1 teaspoon olive oil

1 cup chopped yellow onion

2 cloves garlic, minced

1/2 teaspoon dried rosemary

3/4 cup small fresh mushrooms

1 cup chopped yellow bell pepper

2 tablespoons white wine

1 (15.5 ounce) can white beans, drained and rinsed

1 (14.5 ounce) can Italian-style diced tomatoes, drained

2 cups fresh spinach

1 pinch red pepper flakes

What You Need