Below is our empty kitchen. On the right are the pantry doors. The doorway to the half bath and laundry is right center. We placed a window about where we want our sink to be. I have a strong preference for sinks with windows to the outside, so, wherever possible I include one. This plan will be no different.
But, it's time to get out some cabinets and fill in this space. First, I recommend visiting Kitchen.com to see what they have to say about kitchen layout and planning. Once you have read what the experts have to say, let's talk about our own kitchen strategy.
Looking at the plan view of the kitchen, below, we see that there are three good, usable walls, with the west (left hand) wall being over 17' long. We placed a doorway into the central east-west hallway, but of course, we can move it if we need to. But, I see we have not placed a doorway into the dining room, which amounts to a serious oversight on my part.
So, without any fanfare, take the doorway in the south dining room wall, and copy it into the east dining room wall, so that we can get from the kitchen to the dining room. You might want to place it near the bottom of the dining room's eastern wall, for now. The revised plan is shown below. And, to help us along with the design process, I have drawn in some counter outlines, including a peninsula. We can use these in our discussion.
The bottom half of the kitchen makes a good informal dining area, and there is room for an island or peninsula in the center. We could think of other, perhaps more interesting variations, but this proposed layout seems reasonable. For now.
Let's do some analysis.
Measuring the usable wall space (in a U-shape) between the dining room doorway and the doorway to the back hall (on the right), we get 21'6" of maximum usable counter space. We arrive at that number by taking 6'6", (the length of the left side wall, less the depth of the back wall base cabinets), plus 9'6" of back wall (13'6" less the base cabinets along the side walls), plus 5'6" (the right hand wall less cabinets). Our kitchen area (within the boundaries of the 21'6"), is 114.75 sq. ft. It's a small kitchen. But, is it usable?
Let's consider the placement of the 3 primary kitchen appliances, those that make up the so-called "work triangle". I have already said our sink is going under the window, in the center of the back wall. Depending on your preferences, the stove/cook top could go in the peninsula, and the refrigerator could go on the right-hand wall. Depending on where the stove is placed, this would make a work triangle of 18'5", more or less. Acceptable.
An image showing my calculations, as well as some notes on appliance location, is below.

So, if we are satisfied with the basic shape and layout of the kitchen, we can proceed to filling it with cabinetry. But first ...
Here are some additional things to consider:
Well, maybe we can make a few changes to fix this problem. Let's remove the doorway to the back hall (and place an invisible wall to separate the two "rooms"), and turn the pantry doors to face the kitchen. This makes the pantry deeper than it is wide, but we may decide we want a smaller pantry, anyway, and use the remaining space for closet space onto the central hall. There's plenty of closet/storage space there, already, but we know we can't ever have too much.
Let's see what these changes might look like.

I'm not altogether satisfied with these changes, but I think they are an improvement. So, let's move on to putting in some kitchen cabinets.