Should I bring something? If so, what?

I have a hard time making friends. But I finally ‘made the move’ and asked a woman I met at storytime (we both have children) if she wanted to hang out and she said yes! She invited me and my daughter to her house for lunch. I asked if she wanted me to bring anything and she said no. Should I still bring a little something? I was thinking like maybe a little plant or something? Or is that weird?