As a Byzantine Catholic, my Pascha basket has in it these items:
ham, kielbasa, a piece of slab bacon, salt, butter, a loaf of Pascha bread, hrudka (a homemade cheese), chrin (a beet and horseradish condiment), Pysanky eggs, and a candle. It will be taken to the Church and the priest blesses our baskets after the Resurrection Divine Liturgy.
I have a wicker basket that I only use for Pascha foods; if you have a basket like that you could use it; in a pinch I would use a properly sized box rather than the bags.
Are you Latin rather than Byzantine? At my former Latin parish, folks just brought in some of the things they planned to serve for Easter dinner; mostly the canned goods and bread.
And the above are the items that people at my Byzantine parish put in; in other Slavic parishes, or those of the Greek or other Eastern traditions, the items may differ.
Hope this helps…