What does 丸ごとアルミホイルで包み mean here?


The following is an excerpt from a conversation between me and my language
partner: ニンニクも植えていますので、丸ごとアルミホイルで包み、オーブンで焼いて食べることがあります。

My attempt at translation: "Because we also grow garlic, we also eat it baking
it fully wrapped in aluminium in the oven."

I translated 包み as "wrapped" because I couldn't find a way to translate it as
a noun. Even if my translation is right, Im still very confused because there
is NOTHING attached to it, no する, no particle, no nothing. I rather expect
that my translation is wrong, but then again I don't know how to translate
this in a different way.

Then there is "dictionary form (present) + ことがあります"。 I actually only know of
た-form + ことがあります. I translated it without any semantical additions, even
though I found a source where the "dictionary form (present) + ことがあります"
pattern is described: <http://japanesetest4you.com/flashcard/learn-
jlpt-n3-grammar-%E3%81%93%E3%81%A8%E3%81%8C%E3%81%82%E3%82%8B-koto-ga-aru/>
I'm not sure wether I should translate it as it is described there since my
sentence is lacking the adverb たまに. However, I got the impression that the
"dictionary form (present) + ことがあります" pattern expresses this "there are
times..." meaning by itself. But I don't know, so I wanted to ask you^^

