This is just a good old fashion spud salad. The celery and red bell pepper add a little crunch and color. If you like a mustard style simply double the amounts. Tastes even better if it's had a chance to mingle flavours. Tip: you can wash your eggs well and boil them in with the potatoes, then plunge them into ice water while potatoes are draining. The ice water will make them easier to peel.