Here is view to walk into kitchen from family room. Aisle into kitchen is 38". Too narrow or ok?

Here is view of basic work zones. Garbage/recycling is in cabinet to left of dishwasher. I plan to use peninsula for main prep area.

It would be really helpful if you could post a floor plan showing all the walls and all the dimensions. You could identify where you currently plan to put things and then everyone would be in a position to tell you where you're wrong :-). (Just kidding - this group is incredibly helpful - I planned my last kitchen without a KD, just this group - and it was nearly perfect!).

Thank you sjhockeyfan! Yes, the feedback from the GW group is so helpful! Here are the wall dimensions. Although the entire area shaded blue is labeled kitchen, the area to the left is actually my family room; the space to the right is my kitchen. Unfortunately, the app I used does not display the location of doors/windows in this view, but it gives an idea of scale and wall space.

I have exactly 38" from the end of my peninsula to the wall in my main entry hallway. We've successfully brought Christmas trees, patio furniture, and a 84" sofa through there. Are you accounting for your countertop overhang though?

Your main wet prep area WILL be between your sink and stove since you have plenty of room. You will probably also make sandwiches near the sink and who knows what else. I squeeze into 30" between sink and stove for most prep and use my peninsula for rolling dough and a few other tasks.

But SJhockey is wrong!! Before we tell you where to store everything, we'll need to work a banquette in in front of those windows in lieu of a peninsula. ;)

I am not a layout expert, but something I noticed in your comments that I would caution is the use of the peninsula for the main prep area. I have a very similar layout in my existing kitchen and as much as I would love to use the peninsula for the main prep, I always use the corner between the sink and range. IMO, it's just too far of a distance to be cleaning, cutting, etc. and then carrying the food over to the range.

What is the gray space between the dining room/kitchen/foyer? Is there any opportunity to open walls around this space?

Another idea - have you considered attaching the peninsula to the refrigerator wall where you have the 12" deep cabinets? This might leave more space in your nook where it appears you have a beautiful bay window and you could put some chairs there for a cozy reading nook / potential for a small table?

Thank you May_Flowers. I had not realized my main prep area would be b/w the sink and range, but this makes sense! I thought I'd mostly prep at the peninsula, and so I switched my garbage cabinet from the cabinet at the right of the sink to the cabinet at left of the dishwasher. But I think you've convinced me to switch it back. Yes, a banquette was part of my original plan. Love them! But in the end, I decided a bigger kitchen was more important to me than an eat-in kitchen -- specifically because we use our dining room for most meals and we could still incorporate seating for 4 at the peninsula.

Thank you as well Spartans99. Appreciate your feedback on prep area as well! The gray area b/w kitchen and dining on my rendering is a mix of things: stairs going upstairs, stairs going downstairs, a powder room, and a furnace return. None can be moved without great expense, so I decided to leave them alone (believe me I tried). I also tried putting the peninsula on the wall to the right of the fridge. That's what I thought I wanted--and it would have allowed for a banquette w/table in the nook. But then I detached my current kitchen island, moved it to that location, and then lived with it for a few days. Visually it looked good, but in practice it felt too detached from the rest of our kitchen.