Instant Pot Lentil Soup

Ingredients

• 5 cloves garlic, minced
• 1 teaspoon sugar
• 3 tablespoons tomato paste
• ¼ teaspoon red pepper flakes (optional)
• 1 tablespoon Italian seasoning
• sea salt and black pepper
• 1 cup diced celery
• 1 cup diced carrot
• 1 medium yellow onion, diced
• 2 cups thinly sliced cabbage or coleslaw mix
• 2 cups diced sweet potato
• 2 cups diced yellow potato
• 1 cup uncooked green lentils, rinsed
• 6 cups vegetable broth (or 6 teaspoons Better Than Bouillon Vegetable Base + 6 cups water)
• 28 oz can crushed tomatoes
• freshly squeezed lemon juice, to taste (about half a lemon)