Instant Pot Mushroom-Barley Stew

Ingredients (for 4 servings)

• 6 cup — vegetable broth
• 3 cup — cremini mushrooms
• 3 cup — sweet potatoes
• 2 cup — pearl onions
• 1.5 cup — celery
• 1 cup — hulled barley
• 1 cup — lima beans
• 0.25 cup — tomato paste
• 4 clove — garlic
• 2 tbsp — soy sauce
• 2 tsp — smoked paprika
• 1 tsp — thyme
• 1 tsp — sage
• 0 — black pepper
• 3 tbsp — walnuts
• 0 — flat-leaf parsley or fresh thyme leaves