Heat oil in a pan over medium heat, then add ginger, garlic, and red curry paste. Sauté for 2 to 3 minutes.
Stir in fish sauce, coconut milk, lime juice, brown sugar, red pepper flakes, and salt. Mix well and bring to a boil.
Add chicken and cook for about 8 minutes or until fully cooked.
Toss in red bell pepper and green beans, and cook for an additional 4 to 5 minutes until slightly softened.
Stir in Thai basil, cilantro, and the cornstarch mixture. As you mix, the curry will start to thicken.
Remove from heat and serve over rice! Enjoy your homemade Thai feast!