一顿不揭锅，两顿一边多 とはどういう意味ですか?

質問を翻訳

If you skip one meal (of total three meals in a day), you still can eat three meals quantity within other two meals.
揭锅 means open the pot cover, i.e. cook a meal. 顿 is the measure word of meal: 一顿饭，两顿饭