There are many options beyond tile for your kitchen floors. Here are a few examples of kitchen flooring that you could use within your space:
Hardwoods can being a certain level of warmth through your space. It can also create a level seamless flow, especially if you are using hardwoods throughout your home.
Concrete floors produces a very cool industrial look. They are non porous, easy to maintain and can be stained in many different shades.
Cork is a good option in that it is a sustainable material, it is resilient, soft and helps to reduce noise.
Tiles are traditionally used in most kitchens. There are a variety of tiles to choose from.
Laminate flooring has come a long way. It is a low cost alternative and can mimic the look of wood, tile and stone.