Heat oil in a saucepan over medium heat. Add shallot, garlic, pimento pepper, and cumin seeds; cook until fragrant.
Lower heat and stir in curry powder, Caribbean green seasoning, black pepper, and salt. Toast gently for 3–4 minutes.
Add water and tomato; bring to a gentle simmer. Allow sauce to thicken slightly on low heat.
Place halved eggs yolk‑side down into sauce gently. Simmer for 3–4 minutes, then turn eggs over and simmer another 2 minutes.
Sprinkle scallions, taste and adjust seasoning if needed. Remove from heat and serve.