Return list in an array - WebApi C # [closed]

Good people. I need to return a list of courses linked to a certain student, this list will be consumed through the get of a WebApi.

I have the classes "student", "course" and "courseAluno" (tables in the base - EntityFramework).

The student table does not have the course id, the course table does not have the student id, hence I created the courseAlumnus, in it I have the Id (identity), idAluno, idCourse.

I need to return the following structure when consuming webApi:

{
"id": 2,
"nome": "João Silva",
"endereco": "RUA que sobe e desce",
"mensalidade": 0,
"cursos": [
    {
        "id": 2,
        "nome": "Portugês"
    },
    {
        "id": 5,
        "nome": "Matemática",
    }
]
},

I changed the student class to:

public class Aluno {
public int Id { get; set; }
public string Nome  { get; set; }
public string Endereco  { get; set; }
public double Mensalidade  { get; set; }
public List<Curso> Cursos { get; set; }
}

And at the time of popular the list I did so:

var aluno = dbContext.Alunos
    .Include("Cursos")//Irá carregar os cursos vinculados aos alunos
    .Find(id);//Obtém apenas um aluno

But it is not returned the way I need it. Can someone help me with this? I'm using WebApi C #

Thank you.