Loading related data using repository pattern and uow with EF Core 6

Question

I have three entities

 public partial class UnitsOfMeasure
{
    public UnitsOfMeasure()
    {
        ItemNavision = new HashSet<ItemNavision>();
    }

    public int Id { get; set; }
    public string Description { get; set; }
    public string Code { get; set; }

    public virtual ICollection<ItemNavision> ItemNavision { get; set; }
}
public partial class ItemNavision
{
    public ItemNavision()
    {
        ExpressionOfNeeds = new HashSet<ExpressionOfNeeds>();
    }

    public int Id { get; set; }
    public string Description { get; set; }
    public string Code { get; set; }
    public int FkunitsOfMeasure { get; set; }

    public virtual UnitsOfMeasure FkunitsOfMeasureNavigation { get; set; }
    public virtual ICollection<ExpressionOfNeeds> ExpressionOfNeeds { get; set; }
}
public partial class ExpressionOfNeeds
{
    public int Id { get; set; }
    public int IdItemNavision { get; set; }
    public double Quantity { get; set; }

    public virtual ItemNavision IdItemNavisionNavigation { get; set; }
}

I have use this method to return related data

public async Task<IEnumerable<T>> GetAllIncluding(params Expression<Func<T, object>>[] includeProperties)
{
    IQueryable<T> query = dbSet;
    foreach (Expression<Func<T, object>> includeProperty in includeProperties)
    {
        query = query.Include<T, object>(includeProperty);
    }
    return await query.ToListAsync();      
}

and I implemented in this way

GCData.DataSource = await _unitOfWork.ExpressionOfNeedss.GetAllIncluding(x => x.IdItemNavisionNavigation);

but when I run the program I get this value instead of actual value
Domain.Entities.ItemNavision

how can I return the actual value?.