Preheat oven to 350F. Spray a mini tart or mini muffin pan with cooking spray. Place one wonton wrapper in each cavity, moulding to fit. Spray with more cooking spray. Bake for 6 to 8 minutes or until golden brown. Keep an eye on them because they burn very easily! Remove from pan and let cool.
Heat olive oil in a large skillet on medium heat. Add in onion and cook for 4 to 5 minutes. Stir in garlic and ginger.
Add Madras Curry Paste and 1/4 cup water. Cook until water has evaporated.
Stir in beef and 2/3 cups of water. Cover and simmer over medium-low heat for 50 to 60 minutes.
Stir in 2 chopped tomatoes. Continue to cook over medium-low heat for an additional 20 to 25 minutes.
Add 2 teaspoons of beef mixture to each wonton cup. Top with fresh tomatoes and green onions and serve.