Heat coconut oil in a large skillet over medium-high heat.
Add the diced chicken breast, sea salt, and black pepper, searing until golden brown on all sides.
Stir in the cubed gold potato, red bell pepper, fresh ginger, and minced garlic, cooking for 3 minutes until fragrant.
Add the red curry paste and stir well to coat the chicken and vegetables thoroughly.
Pour in the full-fat coconut milk and a splash of water, bring to a gentle simmer, and cover with a lid.
Cook for 10-12 minutes until the potatoes are fork-tender and the chicken is fully cooked through.
Fold in the fresh spinach and lime juice, stirring until the greens are just wilted, then serve immediately.