Possibility to insert value from another model

Hi, is it possible to put value from another model.
For example I have a model:

 public class ShoppingCartItem
    {
        public string ProductDescription { get; set; }
        public decimal Amount { get; set; }
        public string Currency { get; set; }

        public int ProductCatalogId { get; set; }
        public string ProductName { get; set; }
}

But I need to insert it by the following SQL query
@"insert ShoppingCartItems (ShoppingCartId, ProductCatalogId, ProductName, ProductDescription, Amount, Currency) values ((SELECT id from ShoppingCart WHERE UserId = @UserId), @ProductCatalogId, @ProductName,@ProductDescription, @Amount, @Currency)";

Right now I do next thing

var objects = items.Select(x => new
                    {
                        **UserId = shoppingCart.UserId,**
                        x.ProductCatalogId,
                        x.ProductName,
                        x.ProductDescription,
                        x.Amount,
                        x.Currency
                    });

But I want to avoid creating new Items. It it possible to put UserId somehow?
Thank you in advance!

Start by reviewing the shown ShoppingCartItems INSERT and the anonymous projection, then inspect Dapper's parameter-binding behavior for values taken from another model. Done would mean establishing whether the requested binding is supported and documenting or implementing a clear approach without creating new item objects.