Shrimp and Meat Stuffed Portobello Mushrooms

Name: Shrimp and Meat Stuffed Portobello Mushrooms
Ingredients: 12 Prince mushrooms (or other wild mushrooms) (600 grams); 100 grams Shrimp meat (raw and fired); 100 grams Ground meat (mixed); 2 Scallions (cleaned, finely chopped); 1 Garlic clove; 2 tablespoons cilantro leaf (finely chopped); ½ teaspoon Ginger root (ground); 1 teaspoon Cornstarch; 1 tablespoon Sesame oil; 3 tablespoons bright Soy sauce; Salt; freshly ground Pepper; 3 tablespoons Red diced bell pepper; minced cilantro leaf (to sprinkle)