How to return two one to many relationships in an API response with Laravel controller?

So, I have three models - Events, Groups and Individuals. I'm trying to create an API response that provides a list of groups AND the individuals in each group. I've been able to create a response that provides a list of the groups, but I'm not sure how to also PROPERLY include the individuals of each group.

I thought about just looping through each from the first response and making another query for each, but that seemed like overkill. So, the question is how can I include the Individuals for each Group within the response as well.

I have all three eloquent models defined as such:

Events:

public function groups()
{
    return $this->hasMany('App\Group');
}

Groups:

public function event()
{
    return $this->belongsTo('App\Event');
}
public function individuals()
{
    return $this->hasMany('App\Individual');
}

Individuals:

public function group()
{
    return $this->belongsTo('App\Group');
}

Then I have my route:

Route::get('/events/{id}/groups', 'EventsController@groups');

Then that controller has the function to return the list of groups:

public function groups($eventId)
{
    $event= Event::find($eventId);
    $groups= $event->groups()->paginate();

    return $groups;
}

Any help would be greatly appreciated.

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