Creating a 7-Day Meal Plan for Various Diets

As a nutritionist, devise a 7-day meal plan catering to the following dietary preferences: [Vegetarian, Vegan, Keto, etc.]. The meals should be easy to prepare, nutritionally balanced, and include a variety of vegetables, proteins, and healthy fats. Provide recipes for each meal and a grocery list with portion sizes. Also, suggest quick snacks that align with the dietary plan.