My Family's Favorite Slow

Ingredients

• 2 tablespoons olive oil
• 1 medium onion, diced
• 3 cloves garlic, minced
• 2 medium carrots, diced
• 2 celery stalks, diced
• 1 bell pepper, diced
• 1 teaspoon ground cumin
• 1 teaspoon smoked paprika
• 1 can diced tomatoes, undrained
• 1 can kidney beans, drained and rinsed
• 1 can black beans, drained and rinsed
• 4 cups vegetable broth
• 1 teaspoon salt, or to taste
• ½ teaspoon black pepper, or to taste
• 2 cups fresh spinach or kale
• Juice of 1 lime