No, boiled eggs cannot be frozen successfully after they have been boiled and peeled. The texture will become rubbery and watery, making them unpalatable.
Freezing boiled eggs, whether whole, sliced, or just the whites, results in significant changes to their texture. The water content within the egg expands when frozen, disrupting the protein structure. Upon thawing, this leads to a rubbery, watery, and generally unpleasant consistency. The egg whites are particularly susceptible to this textural degradation. While freezing raw eggs (separated yolks and whites) is possible, the cooking process alters the proteins in a way that makes them unsuitable for freezing. The yolks can become gummy, and the whites become tough and unpleasant. Therefore, it's best to avoid freezing boiled eggs altogether.
To avoid wasting boiled eggs, only boil as many as you plan to consume within a week. Hard-boiled eggs, stored properly in the refrigerator, are best consumed within 5-7 days for optimal quality and safety.