Yes, you can run normal SQL queries in LINQ to SQL. Sample looks like (but not recommended as you do not have statement completion and validation)
NorthwindDBDataContext db = new NorthwindDBDataContext();
var query = db.ExecuteQuery<Customer>(“SELECT * FROM Customers”, “”);
One of the benefits of this approach is that you may get your comfort zone. Major drawback is you always need a representable CRL type to store the output.