In a pan over medium high heat add olive oil and onion. Cook until translucent, about 4 minutes and add red pepper, salt and pepper and cook for 2-3 minutes. Add garlic and stir for 1 minute. Add couscous and cook for 2-3 minutes. Add chicken stock or water and turn to high and bring to a boil. Reduce heat to medium low and continue cooking and occasionally stirring for 8-10 minutes until the couscous is almost cooked. Add water if needed if the pan is too dry. Add peas and cook until they are heated through about 2 minutes. Add Parmesan cheese and taste for seasoning and add water until desired consistency. Garnish with fresh herb and serve.