First of all, who is "we"? How many people will be working on this?

I think this is WAY too many items even if you were ten very experienced people. You write, "I have no idea what I'm doing," so I'm guessing you don't have a lot of experience with cooking for large groups. This is actually much too much even if you use a caterer. You'd have to have way too much food and a lot of waste with so many choices -- at least 55 servings of every item times 21 items. Most will be untouched.

So you need to do two things.:

First, drastically simplify your menu, and I mean by like 85%. You've already got a candyish appetizer and a special drink that you say the guest of honor insists upon. Then I would eliminate everything else except any one of items 1, 2, or 3; and then also items 11, 13, and 14. Which is: some kind of sandwichy thing, Caesar salad, fruit kabobs, and vegetable tray. Also coffee and some nonalcoholic drink. You can add a simple dessert -- one -- unless you think you're sort of serving dessert first with those goodies. Make sure everything on your menu can be eaten by someone standing with a plate in her hand. Nothing that requires a knife and fork and nothing messy (chili, meatballs, taco salad, yogurt).

Second, this is a large group, so unless you all really really know what you're doing, please consider hiring a caterer to do all or at least some of the food. You may be pleasantly surprised that the difference in price is less than you think (the caterer I use actually often costs a bit less than doing it myself). Or you can order pre made platters of things. Sometimes I'll cook, say, a main dish and a dessert and order fruit and cheese trays and salads.

For 55 people you should get some help, not necessarily professionals, but even a couple of teenagers. They will help you set up, clear away used plates and cups throughout the party, replenish pitchers and platters, and clean up. It also helps keep your guests from trying to help, which can really detract. At the most recent shower I gave, a brunch for only 19 or so people, I almost didn't bother with a helper, but thank goodness I did: when the first guest tried to get coffee from the percolator, all she got was water -- it hadn't worked right. So the helper ran to Starbucks for cartons of coffee. Unforeseeable stuff like that.

The simpler you keep it, the better it will be, I promise. If the hosts are stressed out, no matter how good the food is, the guests are miserable.

It will be a lovely party. Have a good time!

Is it 55 invitations sent or 55 people who responded that they were coming? If you've sent 55 invitations, you'll probably have about half attend. I agree with gelichom -- you have WAY too many items. I think her suggestions are spot on. It's better to have lots of a small menu than samples of a large menu.

Martha

Whoa, I agree, that is way too much food for a baby shower. You already have the appetizer and specialty drink covered per MTB. No need to duplicate those. For the luncheon we catered several years ago I can tell you the foods we made. The MTB, her mom and I sat down and talked over the food she likes herself. (Have you talked at all with the guest of honor about the food?) I was surprised that she was a traditionalist when it came to the food. She herself was in her early 20's. She loved mini quiches. So we made 3 different ones, cheese, broccoli, and bacon and cheddar. Cantaloupe wedges wrapped with prosciutto, mixed fruit salad with yogurt sauce for topping. A green salad with a mix of veggies and 3 dressings to choose from. For the sandwiches she chose pinwheel cut and wraps. A curried chicken salad, roast beef, and a cucumber vegetarian. There was one more item, something Mexican in taste, rolled up. Can't for the life of me remember what it was. Senior moment! Her mom and sister were going to make a special family recipe cake, so we didn't make any desserts. But for you a simple sheet cake would be fine. You can order very good ones at Costco or BJ's. Have a punch along with that specialty drink you are making. Along with coffee, tea and water. I would count on 2/3'rds of the guests showing up. Probably less will respond to the rsvp so make sure you have a final number about a week before the shower. That will give you time to shop for food and make things ahead of time. Everything I mentioned except for the sandwiches(sandwiches tend to get soggy if made to far in advance) can be made a day or two ahead. They can be kept refrigerated, taken out before the guests arrive. I don't care for things to be too cold, room temp. is fine with me. You can heat the quiches in the oven on low just till warm if you like. For women, think 2-3 sandwiches pp. They have other things to eat so that will be fine. Around 3 drinks pp, then coffee and tea with dessert. Showers usually last 2-3 hours. The food can sit out that long with no problems. If this all seems a bit much for you, do consider catering. Let them do the bulk of the work and you make the desserts. Take care and don't let this overwhelm you. You are supposed to enjoy the shower too! NancyLouise

I agree with Gellchom and Martha....think nancy louise still planned too many choices.
I would offer the special drink and iced tea and coffee and water of course. only one walk around munchie and I would opt for something like chex mix or even a few nuts.
For the main course I would offer2 kinds of sandwiches, my choice in this situation is always chicken salad ( yoju can buy it...or make it easily from frozen boneless chicken you cook yourself) and something like deli ham or deli sliced beef for the other sandwich choice. Make the sandwiches small and plan on more of each than you will have guests. I would use those small dinner rolls, like the Hawiian ones.
I love fruit kabobs, easy to eat walking around or sitting with food in your lap, and I would also offer some raw veggies, like celery carrots, jicama sticks, spears of cucumber, slices of colored peppers...make it pretty.
I would start now making an assortment of cookies and bars for dessert....or if you are pressed for time just make or buy a couple of sheet cakes.
You will need 8 pounds of chicken salad for 60 small sandwiches and about the same amount of sliced meat.
Good luck.....and as has been said....try to pin down the number who really plan on attending....will make your life easier.

thank you so much for all your help!