- In a large skillet or saucepan, heat the vegetable oil over medium heat. Add the diced onion and sauté until translucent, about 3-4 minutes. 
- Stir in the minced garlic and grated ginger, cooking for an additional 1-2 minutes until fragrant. 
- Add the sliced red bell pepper and broccoli florets to the skillet. Cook for about 5 minutes, stirring occasionally, until the vegetables are tender-crisp. 
- Pour in the coconut milk, peanut butter, soy sauce, brown sugar, red curry paste, and vegetable broth. Stir well to combine all ingredients. 
- Bring the mixture to a gentle simmer and let it cook for 10-15 minutes, stirring occasionally, until the sauce thickens slightly. 
- Remove from heat and stir in the lime juice. Season with salt and pepper to taste. 
- Serve the curry over cooked rice or quinoa, garnished with fresh cilantro.