Rashi on Leviticus 3:11/רש"י על ויקרא ג׳:י״א

1'לחם אשה לה‎ means: it is the food of the fire in honour of the Lord. (The translation is not: it is food, a fire offering unto the Lord; לחם is construct, and the words must be translated as Rashi does).

2לחם is a general expression for food. Similar is, (Jeremiah 11:19) “let us destroy the tree with the fruit thereof (בלחמו)”; (Daniel 5:1) “[Belshazzar] made a great banquet (לחם)”; (Ecclesiastes 10:19) “It is for laughter that a banquet (לחם) is made”.