Sloppy Joe Sliders with Asian Chili Sauce

Name: Sloppy Joe Sliders with Asian Chili Sauce
Ingredients: 2 tablespoons canola oil; 2 medium red onions, finely chopped; 1 cup finely chopped celery; 3 tablespoons sambal oelek or other Asian chili sauce; 2 1/2 tablespoons minced garlic; 1 tablespoon minced peeled fresh ginger; Kosher salt; Freshly ground pepper; 1 pound ground chicken thighs; 1 pound ground pork; 1 cup hoisin sauce; 1 cup drained canned diced tomatoes; 1/4 cup fresh lime juice; 20 brioche dinner rolls, split and toasted; Shredded iceberg lettuce and spicy pickles (optional), for serving