Inside Glen Powell and Sydney Sweeney’s Dallas dinner outing — and the surprising celeb who joined them

It was a Full House.

Sydney Sweeney and Glen Powell were “lovely” while grabbing dinner with friends –– which included John Stamos –– at Joe Leo Fine Tex Mex in Dallas, Texas, last weekend.

“They were all there [at the] same time. [It was a] really unique day,” Kyle Noonan, the CEO and founder of the Tex-Mex hotspot, told SiriusXM’s Page Six Radio on Friday.

The three A-Listers all snacked on tacos and sipped on tequila before celebrating Powell’s sister Leslie Powell’s wedding last weekend.

“We had three questions that everybody wanted to know when they came in: one, were they nice? Overwhelming, yes they were lovely,” he raved.

Noonan said the second thing his customers have been asking him is if they were “attractive,” to which he quipped, “I think we all know the answer to that! They’re obviously very attractive.”

“And three, everyone wanted to know, what did they eat?” he said.

Noonan and his team capitalized on the interest by temporarily renaming the stars’ orders to Glen’s Golden Tacos, Sydney’s Soft Chicken Tinga Tacos and Uncle Jesse’s Jumbo Shrimp Brochette.

Stamos, 61, attended both the intimate dinner and Leslie’s wedding after becoming close friends with Glen, 36, while they worked on “Scream Queens” in 2015 and after visiting Glen’s family’s Texas ranch several times over the years.

Meanwhile, Glen and Sweeney, 27, famously sparked romance rumors while filming and promoting their film “Anyone But You” in 2023.

They raised eyebrows again last weekend when they were seen dining at the restaurant ahead of his sister’s nuptials last weekend.

However, the “Top Gun: Maverick” star said the “White Lotus” actress attended because she is one of Leslie’s “great friends.”

Glen’s mom, Cyndy Powell, also shut down speculation that the two were anything more than friends.

“They’re definitely not together,” she told the Daily Mail on Tuesday. “[There is] nothing going on behind closed doors.”

Cyndy explained that the whole family –– including the bride herself –– became “really close friends” with the “Euphoria” actress when she filmed the romcom with Glen in Australia.

“We love Sydney. We’ve considered her just a really, really good friend,” she shared with the outlet. “We all were together so much, and we haven’t seen her in a long time. She’s really a friend, and we all enjoy her.”

Despite fans rooting for the two to get together at the time of filming the 2023 romcom, the two each admitted to leaning into the showmance to promote the film.

Still, the want for a real-life romance hit a fever pitch after Sweeney called off her wedding and broke up with Jonathan Davino just a few months before their scheduled wedding.

Sweeney ended the relationship to “focus on her career right now,” a source told People earlier this week.

“She’s exactly where she wants to be. Most people would feel overwhelmed by her working schedule this year, but not Syd. She’s all about working right now and very excited about all her projects,” the insider claimed.

“What did make her overwhelmed, though, was her relationship and her wedding. She didn’t feel right about it,” they quipped.

The former couple began dating in 2018 and they got engaged four years later.