Answer:
Ketchup's slightly less popular brother.
There was a little heart inside a little white house, which was inside a little yellow house, which was inside a little brown house, which was inside a little green house.
Many people confuse me with a vegetable, but I'm actually a fruit. I'm red when I'm ripe, and I'm sliced and served on burgers.
What food goes on and on without a beginning, middle, or an end?
What type of cheese is made backwards?
What do you purposefully put lots of in and on your body, but run away from when you encounter it outside?