In blender place tomatoes and 1 cup chicken stock. Puree until smooth. Reserve. In large skillet heat olive oil over medium-high heat. Add onions and saute with salt and pepper until golden brown, about 10 - 12 minutes. Add garlic and cook for a few minutes. Add red peppers, poblanos, tomato puree and remaining stock. Bring to a boil then reduce to a simmer and cook for 5 minutes. Poach eggs in broth and cook 4 -6 minutes, basting the tops occasionally with hot broth. With slotted spoon remove eggs and place in soup bowl. Ladle broth over eggs and garnish with grated cheese and sour cream.