In general, you can use `\text{text here}`

; if you want to put maths inline with the `text here`

, you can use dollar signs:

```
\text{Heinz $~$57$~$ Varieties}
```

Additionally, if you have a mathematical string you want to typeset, like "sin", you can use `\mathrm{sin}`

which shows up as $~$\mathrm{sin}$~$. (It so happens that there is already a built-in symbol that does that for sin: `\sin`

.)