Flavorful Slow Cooker Thai Beef Curry

Ingredients

• 1 tablespoon ground cumin
• 1 tablespoon ground coriander
• 1/2 cup unsalted beef stock
• 1 yellow onion, sliced
• 2 tablespoons fish sauce
• 1/3 cup Thai red curry paste
• 1 cup loosely packed fresh cilantro leaves, chopped
• 2 tablespoons light brown sugar
• 3 tablespoons fresh lime juice
• Salt to taste
• 5 ounces fresh spinach
• 14 ounces canned full-fat coconut milk
• 8 ounces green beans, halved crosswise
• 2 pounds beef stew meat