Vegetable Curry Noodle Stew

Name: Vegetable Curry Noodle Stew
Ingredients: 1 (8-oz) package udon noodles; 2 Tablespoons coconut oil; ½ cup very thinly sliced red onion; 1 cup thinly sliced shitake mushrooms; 1 Tablespoon fresh grated ginger; 1 Tablespoon fresh grated turmeric; 3-4 cloves garlic, minced; 1 (13.6-oz) can coconut milk; ¼ cup peanut butter; 3-4 Tablespoons red curry paste; ½ cup vegetable broth; 1 cup carrots, sliced into matchsticks; 1 cup bok choy stems, chopped finely; 1 cup red pepper, thinly sliced; 2 cups greens (bok choy leaves, spinach, etc.); ½ cup chopped fresh cilantro, for garnish