The 18-count carton of large eggs I usually buy leaped to $7.54 at my local Walmart Neighborhood Market and the egg shortage and sky-rocketing prices are expected to continue. This video offers some egg substitution ideas, you might find useful:
If you do use real eggs, you might want to consider saving the shells too. The shells can be washed in water, air-dried, then placed on a cookie sheet in the oven at 225 degrees for around 25 minutes to dry completely. Once the shells cool, you can crush them into a powder, which some people use as a supplement, but even just broken up into small pieces they’re great in the garden for some added nutrition for plants.
At this point it’s a good idea to think about using the shells, peels, etc., before tossing any food product into the trash There are videos galore online on how to make apple core/peel vinegar or using peach pits to make vinegar. Lemon and orange peels can be dried and used in a variety of ways too. Same goes for keeping onion peels, celery scraps, carrot peels to throw into chicken broth or for making vegetable broth. I keep a ziploc bag in the freezer, where I toss vegetable scraps to use in broth. If all else fails consider composting kitchen scraps to use on your yard and garden.