For the Instant Pot:
Begin by selecting the saute function on your Instant Pot. Once hot, add oil and onion. Cook for 3 minutes or until onion is fragrant and translucent. Add ginger and garlic, cook for another 1-2 minutes.
Add remaining vegetables, and diced tomatoes. Mix in spices, salt and curry paste.
Slowly fold in coconut milk and continue to mix until everything is well incorporated. Press cancel on your Instant Pot.
Secure the lid. Select the manual function and cook on high pressure for 5 minutes. Use a quick release. Open lid once pressure is released, stir in lime juice.
Garnish with cilantro and serve hot.
For the Slow Cooker
Place all vegetables: onion through bell pepper into your slow cooker.
Mix spices, salt, and paste in a bowl with diced tomatoes. Pour on top of your vegetable mixture. Now mix in the coconut milk.
Top with the lid and cook for 4 hours on low or until vegetables are softened.
Stir in lime juice and serve with garnished cilantro.