And when Shittu re-opened his recruitment at the beginning of June, again the Irish were front-and-center in his recruitment.
However, the Irish are yet to offer Scout.com's sixth-rated defensive tackle in the 2012 class, not that he is sitting by the phone waiting for it.
"I Facebook message with the coach (assistant Mike Denbrock) sometimes but he hasn't said anything about an offer," Shittu said. "I'm not really trippin' about anything right now. If they come, they come, but it's going to be a while before I decide on things."
The 6-foot-3, 275-pound Shittu said he has interest in the Irish, but doesn't see himself making a visit unless the Irish offer.
"I'm just keeping my options open and taking a look at everything," he said. "I'm opening up so I can see everything. I don't know the schools I'm visiting for officials, but it would be a nice visit if I got the offer.
"Notre Dame, California, Stanford, USC, Michigan …those are the schools I'm looking into mostly. I don't know if I'm going to visit anywhere yet. I just have to see how the financial situation works out."
"The tradition is pretty sick over there," Shittu said. "If you say Notre Dame anywhere, people know what you're talking about and they think football. The tradition is pretty good there.
"I talk to coach Denbrock before the May evaluation started. We talked weekly, once or twice a week."
Shittu made 75 tackles, including 6½ sacks, and forced three fumbles as a junior. And while his quick first step and strength to play against interior offensive linemen make him a very good fit for a 3-4 defensive end, schools aren't shoe-horning him into a position.
"Some schools are saying defensive end, some are saying I can come in and play where I want, and wherever I fit best at," Shittu said. "It doesn't matter to me."