Don't know if this is legal where you are, but this is what I have in my galley, under the sink. Two burner stove is to the right but can't be seen in the picture.
Since you probably already know what to do better than I do, the information below is for people who don't:
If you're going to have a fire, chances are it will be in the galley. If it's in a pot or fryer, you might be able to put a lid on it and smother it. Another thing that could help is a box of baking soda. Pour that on liberally and it'll usually kill a cooking fire, too. Of course, if the fire is on the ground, use water or smother it with dirt.
A chuckle for you:
In a college cooking class, I had to broil some fish. I hate most fish. Fortunately, my fish caught fire. I thought fast and smothered them with baking soda. I got a 'B' for that day's class and everyone wanted to know why. The professor said it was because I knew what to do when the fish caught fire, didn't lose my head and acted fast.
I smiled because not only did I get a 'B' for that day's class but also, I didn't have to eat fish!
There is a new product, a small fire blanket that just came out that smothers fires. I saw it online. If I see it again, I'll try to remember to post it for you, in case you're interested.