There is no sacrifice specified for the Passover except the lamb. I mean, the lamb that they slaughtered at their own home!
Conspicuous by its absence here in Numbers 28—right in the midst of detailed instructions for all the required tabernacle/temple sacrifices—there is nothing (zilch, zero) mentioned for the Passover. That is because God never intended any Passover sacrifice to be made at the tabernacle, or temple. Nowhere in the Pentateuch, the first five books, is there a command to sacrifice any Passover lamb—specifically for Passover—at the tabernacle.
The Passover was intended by God to be a domestically killed sacrifice and a domestically observed festival. Did you notice that there was not "a holy convocation" even suggested? No command to get together for a church service in this, because they were at home. They observed it at home.
