What is the most common ingredient found in egg-based breakfast items?

The most common ingredient found in egg-based breakfast items is eggs. This is because egg-based dishes, such as omelets, scrambled eggs, and frittatas, are primarily centered around the use of eggs as the main component. Eggs provide both structural integrity and a rich source of protein, making them a staple in many traditional breakfast recipes.

Wheat, while common in breakfast items like pancakes or toast, does not play a role in egg-based dishes specifically. Dairy, such as cheese or milk, may be included in some egg dishes, but it is not a necessary component of all egg-based recipes. Meat can also be paired with eggs in breakfast items like breakfast burritos or egg and sausage muffins, but it is not the core ingredient in these dishes. The fundamental characteristic that defines egg-based breakfast items is the inclusion of eggs, making this the correct answer.