Sit-down dinner — at a table, with proper plate, present with food — is more nourishing psychologically than eating in front of TV or standing at counter. Whether you live alone or with family.
What this looks like solo
Set the table. Make a proper meal (not just leftovers eaten standing). Sit for the duration. Eat without screens. 30 minutes minimum.
Most solo adults who shift to proper dinner ritual report better mood, better digestion, better relationship with food. Five-minute setup; substantial daily benefit.