Heat oil in a medium saucepan and saut� onion over medium-high heat for 3 minutes; stir in ham and garlic and continue cooking for 3 minutes.
Stir in peas and the next 4 ingredients; bring to a boil; decrease heat, and simmer, stirring occasionally, 20 minutes. Adjust seasoning to taste with salt/pepper.
Serve topped with chopped tomatoes, sliced green onions and pepper sauce.