Swiss Chard Chickpea Soup {Vegan + Gluten-Free}

Ingredients

• 1 tablespoon extra-virgin olive oil
• 2 cups diced yellow onion
• 2 teaspoons minced garlic (2 cloves)
• 3 cups (720g) canned diced tomatoes and their juices
• 2 cups (480g) cooked chickpeas, drained and rinsed
• 1 bunch chard, stems removed and leaves cut into ribbons
• 1/4 cup chopped fresh flat-leaf parsley
• 1/4 cup finely chopped fresh basil leaves
• 1 teaspoon Celtic sea salt, plus more to taste
• 1 teaspoon dried oregano
• 1/2 teaspoon onion powder
• 4 cups (960ml) vegetable broth
• 1 teaspoon fresh lemon juice, plus more to taste