Thank you for sharing your dream with us. Please take everything that I share to the Holy Spirit as He Alone gives the accurate interpretation.
I don’t think the food that the church was offering you was physical food. I think it is an invitation to “dine” with them to partake of meat (learn with them) in the things of God. Meat sometimes refers to mature teaching of the Word of God and I believe that it is what it signifies in the context of your specific dream. May the Holy Spirit give you clarity regarding with local church/ ministry/ and/ or group of believers to grow with spiritually in Jesus’s Almighty Name I pray, Amen!