Rashi on Numbers 11:5/רש"י על במדבר י״א:ה׳

1אשר נאכל במצרים חנם [WE REMEMBER THE FISH] WHICH WE DID EAT IN EGYPT FOR NOTHING — If you say that they meant that the Egyptians gave them fish for nothing (without payment), then I ask, “But does it not state, (Exodus 5:18): [Go, therefore, now, and work], for there shall no straw be given you”? Now, if they did not give them straw for nothing, would they have given them fish for nothing! — What then is the force of the word חנם? It means: free from (i.e. without us having been burdened with) heavenly commands (Sifrei Bamidbar 87).

2את הקשאים THE CUCUMBERS — R. Simeon said, “Why did the manna change its flavor into that of anything one wished (as the Midrash states) except into these vegetables here mentioned, the taste of which it appears not to have assumed since the people lusted for them? Because they are injurious to nursing mothers. So indeed people say to a woman: Do not eat garlic and onions on account of the baby. A parable! This may be compared to a king, etc. as it is related in the Sifrei Bamidbar 87.

3הקשאים These are concombres in O. F., (English = cucumbers).

4אבטיחים are boudekes in O. F. (English = melons).

5החציר are leeks, porels in O. F. [The Targum renders the names of the vegetables by בוציניא etc.].