How can this FindAll query be reworked to return the combined list of qualifying objects?

In this simple example  below I have some nested lists and I want the root to be able to return a list of the grandchildren that match a predicate.

Class cFruits
    Property Fruits as List(Of cFruit)
    Function VegetarianRecipes() As List(Of cRecipe)
        'The following line is wrong as it returns the cFruits that have a vegetarian Recipe and not the Recipes themselves.  
        'How do I rework the linq to return the cRecipe as one list even though they are sourced from seperate lists?
        Return Fruits.FindAll(Function(f) f.Recipes.FindAll(Function(x) x.Vegetarian = True).Count > 0)
    End Function
End Class
Class cFruit
    Property Recipes as List(Of cRecipe)
End Class
Class cRecipe
    Property Vegetarian As Boolean
End Class

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How can the Return line in the Function VegetarianRecipes be modified to return a list of the grandchildren of type cRecipe that are vegetarian.
Thank you,