Eloquent querying relation based on main query - laravel

Question

I have 4 tables:
Users with column id
Teams with column id
Roles with column id
Pivot teams_users with columns team_id user_id role_id
Goal: get teams, each team has members. Each member has a role in that team.
My approach:
Fetch teams, then fetch members and roles of that team. Loop the collection, add the role to the correct member, delete the role after.
$teams->each(function($team, $teamKey) use ($teams) {
if(empty($team->members) === false && empty($team->roles) === false) {
$team->members->each(function($member, $memberKey) use ($team) {
$team->roles->each(function($role) use ($member) {
if($member->id === $role->pivot->user_id) {
$member->role = $role;
}
});
});
}
});
My goal:
I want to do it using Eloquent and without looping the collection.
My Team model has two relations:
public function members() {
return $this->belongsToMany(User::class, "teams_users", "team_id", "user_id")->withPivot("role_id")->withTimestamps();
}
public function roles() {
return $this->belongsToMany(Role::class, "teams_users", "team_id", "role_id")->withPivot("user_id")->withTimestamps();
}
expected output should be like this:
{
teams: [
{
id: 1,
title: "Awesome team",
members: [
{
id: 1
name: "Test",
role: {
id: 1,
title: "Admin"
}
}
]
}
]
}
Your help is much appreciated.