It’s not rare to see bacon on donuts around here.
This is a single kanji with an い on the end, meaning you know it's probably an adjective. What's the adjective form of rare? It's rare. But, this can also mean unusual or curious (as in "odd" curious, not that you're curious about something).
Since this word consists of a kanji with hiragana attached, you can bet that it will use the kun'yomi reading. You didn't learn that reading with this kanji, so here's a mnemonic to help you:
You know what's unusual and rare? This maze is rare (めずら). I don't think there's a way out of it. We've been walking around for days now, and we haven't gotten any closer to the exit!