How do I solve 1 down in Daily Telegraph Cryptic 31239?

Question

Accepted Answer

1 down reads "Forget beans, sadly unavailable, and get another dish" (4,10 letters); the answer is BEEF STROGANOFF. It's an anagram clue: the answer is a rearrangement of letters supplied by the clue itself. Look for an indicator like 'mixed', 'broken', 'cooked', or 'wild', and find a phrase whose letters add up to the answer's length. The full step-by-step breakdown is on this page.

Forget beans, sadly unavailable, and get another dish (4,10)

1D — Forget beans, sadly unavailable, and get another dish (4,10) — BEEF STROGANOFF