solid help

We started solids at 7 months. He finally mastered the spoon last week. Now all he does is scream at mealtime. Even things he's liked in the past. At first I thought it was a fit because I took away him cup. Then I thought he was tired because our schedule was off that day, but he did the same thing this morning at breakfast. I haven't introduced a lot so I'm not sure what I can do. Any ideas?