Pick out a range of characters with non-greedy grep

Let's say you've got a string like:

$ string="abc.Cat.def.1.zip.hij.Cut.klm.1.zip.Cat.no.2.zippqrs"

Out of this string, you want to pick out Cat*zip (Cat.def.1.zip and Cat.no.2.zip), ".*" works but is greedy so this grabs too much:

$ echo $string | grep -Eo "Cat.*zip"

This does what we want:

$ echo $string | grep -Eo "Ca[t][^t]*.zip"

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