Tonari no Lunch

Tonari no Lunch summary:

Delicious food and a hint of love...??A heartwarming gourmet foodmysteryBL!?A remote worker learns that the guy he had a crush on at work is getting married! Heartbroken, but hungry, he ponders what to eat and smells the delicious cooking from the neighbor next door. While trying to place the familiar scent, he vows to recreate the dish himself. He then passes by a good looking guy at his apartment. What is this mysterious dish, and who could the handsome stranger be?+