Sometimes you just survive. Wizards need a way to survive as well.
1st level transmutation
Casting Time:1 action
Components: V, S, M (4 pounds of inorganic matter)
You transmute your random matter into 3 pounds of a thin gruel. It is not tasty, but it fills up to three regular humanoids for one day. After one hour the gruel returns to the normal matter if not consumed.
At Higher Levels: When you cast this spell using a spell slot of 2nd level or higher, you can use an additional pound of inorganic matter and create one additional pound of gruel feeding one additional medium creature for every slot level above 1st.