In a large bowl, combine the beef chunks with salt and pepper.
Heat a large pot or Dutch oven over medium-high heat. Add a splash of oil and sear the beef chunks on all sides until browned, about 5-7 minutes. Remove beef and set aside.
In the same pot, add the sliced onion, garlic, and ginger. Sauté for 2-3 minutes until onions are softened and fragrant.
Stir in the red curry paste and cook for an additional minute, allowing the flavors to meld.
Return the seared beef to the pot and pour in the coconut milk, fish sauce, brown sugar, and lime juice. Stir well to combine.
Bring the mixture to a gentle simmer, then cover the pot and reduce the heat to low. Let it cook for 1.5 to 2 hours, or until the beef is tender and the flavors have developed. Stir occasionally.
During the last 15 minutes of cooking, add the sliced red bell pepper and green beans to the pot, and continue to simmer uncovered.
Once the beef is tender and the vegetables are cooked, taste and adjust seasonings as needed.
Notes
Serve the Coconut Red Curry Drip Beef over a bed of jasmine rice, garnish with fresh cilantro leaves, and a wedge of lime on the side for a vibrant presentation.