From Longman Dictionary of Contemporary Englishsquare mealsquare mealMEALa good satisfying meal Children should have three square meals a day. → square
Examples from the Corpus
square meal• Indeed he often gave them whatever was in the till, feeling they looked in need of a square meal.• When making wraps at home, the following tips will simplify rolling or wrapping these scrumptious square meals.• So a catastrophic drop to 5 percent of its pre-deluge invertebrate quantities still provided them with three square meals a day.• Some days he ate three square meals; sometimes he barely stopped to shove a doughnut into his mouth. 