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.)