view.py
from django.shortcuts import render
from .models import Pizza


def index(request):
    return render(request, 'pizzaz/index.html')


def pizza(request):
    pizza = Pizza.objects.order_by('name')
    context = {'pizza': pizza}
    return render(request, 'pizzaz/pizza.html', context)


def topping(request, topping_id):
    topping = Pizza.objects.get(id=topping_id)
    entries = topping.topping_set.order_by('topping')
    context = {'topping': topping, 'entries': entries}
    return render(request, 'pizzaz/topping.html', context)

urls.py

from django.conf.urls import url
from . import views

urlpatterns = [
    url(r'^$', views.index, name='index'),
    url(r'^pizza/$', views.pizza, name='pizza'),
    url(r'^pizza/(?P<topping_id>\d+)/$', views.topping, name='topping')
]
------------------------------------------------------------------------------
models.py

from django.db import models

class Pizza(models.Model):
    name = models.CharField(max_length=50)

    def __str__(self):
        return self.name

class Topping(models.Model):
    pizza = models.ForeignKey(Pizza, on_delete=models.CASCADE)
    name = models.TextField()

    class Meta:
        verbose_name_plural = 'topping'

    def __str__(self):
        return self.name
----------------------------------------------------------------------------------
topping.html
{% extends "pizzaz/base.html" %}

{% block content %}
    <p>Pizza: {{ pizza }}</p>

    <p>ingredients:</p>
    <ul>
        {% for entry in entries %}
            <li>
                <p>{{ entry.name|linebreaks }}<p>
            </li>
        {% empty %}
            <li>
                There are no ingredients for this pizza
            </li>
        {% endfor %}
    </ul>

{% endblock content %}
----------------------------------------------------------------------------------
pizza.html
{% extends "pizzaz/base.html" %}

{% block content %}
    <p>Pizza Names</p>
    <ul>
        {% for p in pizza %}
            <li>
                 <a href="{% url 'pizzaz:topping' topping.id %}">{{ p }}</a>
            </li>
        {% empty %}
            <li>No pizzaz have been added</li>
        {% endfor %}
    </ul>
{% endblock content %}