Seed data in code first Entity Framework - asp.net-mvc

Question

I am using code-first Entity Framework in my ASP.NET MVC project
I have these tables
User
public class User:IBaseEntity
{
public User()
{
UserRoles = new List<UserRole>();
}
public int ID { get; set; }
public int RoleId { get; set; }
public string Email { set; get; }
public string Password { set; get; }
public string FirstName { set; get; }
public string LastName { set; get; }
public string Company { set; get; }
public string Address1 { set; get; }
public string Address2 { set; get; }
public string City { set; get; }
public string PostalCode { set; get; }
public string Country { set; get; }
public string State { set; get; }
public bool Active { set; get; }
public DateTime? CreatedOn { set; get; }
public DateTime? DeletedOn { set; get; }
public virtual ICollection<UserRole> UserRoles { get; set; }
}
Role
public class Role : IBaseEntity
{
public int ID { get; set; }
public string RoleName { get; set; }
public bool Active { set; get; }
public DateTime? CreatedOn { set; get; }
public DateTime? DeletedOn { set; get; }
}
UserRole
public class UserRole : IBaseEntity
{
public int ID { get; set; }
public int UserId { get; set; }
public int RoleId { get; set; }
public virtual Role Role { get; set; }
}
IBaseEntity
public interface IBaseEntity
{
int ID { get; set; }
}
I need seed data User with UserRole
How can I put UserRole in method create User?
public void CreateRoles(CMSDbContext context)
{
if (context.Roles.Count() == 0)
{
List< Role> listRole = new List<Role>()
{
new Role()
{
RoleName = "Admin",
Active = true,
CreatedOn = DateTime.Now
},
new Role()
{
RoleName = "User",
Active = true,
CreatedOn = DateTime.Now
}
};
context.Roles.AddRange(listRole);
context.SaveChanges();
}
}
public void CreateUser(CMSDbContext context)
{
if (context.Users.Count() == 0)
{
List<User> listUser = new List<User>()
{
new User()
{
FirstName = "David",
LastName = "Lima",
Active = true,
Email = "admin#domain.com",
Address1 = "New York",
Address2 = "Chicago",
Company = "Test",
CreatedOn = DateTime.Now,
PostalCode = "123456",
State = "Test",
City = "test",
UserRoles =???
Password = CMS.Common.HashMD5.CreateMD5("12356")
}
};
context.Users.AddRange(listUser);
context.SaveChanges();
}
}
}
Please focus on method CreateUser have property UserRole, not sure what I can put here. I also create some roles in Role table (admin, user)
I am getting stuck at this point.
Any help will be appreciated
Thanks all