• Wash and dry produce. • Halve, peel, and thinly slice half the onion; dice remaining onion into ¼-inch pieces. Zest and quarter lime. Roughly chop cilantro. • In a small microwave-safe bowl, combine sliced onion, ¼ tsp sugar, juice from three lime wedges, and a pinch of salt and pepper (½ tsp sugar and six lime wedges for 4 servings). Cover with plastic wrap and microwave until onion is bright pink, 30-45 seconds. • Transfer to refrigerator to cool, stirring occasionally.

• Heat a drizzle of oil in a medium pot over medium heat. Add diced onion; season with salt and pepper. Cook, stirring occasionally, until softened, 4-5 minutes. • Add half the cumin (you'll use the rest later) and cook, stirring frequently, until fragrant, 30 seconds. • Stir in beans and their liquid. Bring to a simmer and cook, stirring occasionally, until thickened, 3-5 minutes. • Using a potato masher or fork, mash bean mixture until mostly smooth. Remove from heat. Stir in 1 TBSP butter (2 TBSP for 4 servings); season generously with salt and pepper. (If beans seem too thick, stir in a splash of water.)

• Meanwhile, open package of chicken and drain off any excess liquid. • Heat a drizzle of oil in a large pan over medium-high heat. Add chicken in a single layer; season with remaining cumin, salt, and pepper. Cook, stirring occasionally, until browned and cooked through, 4-6 minutes. • Turn off heat; transfer to a plate. Wipe out pan.

• While chicken cooks, in a second small bowl, combine sour cream, lime zest, and juice from remaining lime. Add water 1 tsp at a time until mixture reaches a drizzling consistency. Taste and season with salt and pepper.

• Heat pan used for chicken over medium heat. Working in batches, add tortillas and cook until lightly browned, 1-2 minutes per side. TIP: Use tongs here for the perfect flip!

• Divide tortillas between plates. Fill with beans and chicken. Top with cotija, pickled onion (draining first), lime crema, and cilantro. Serve. ***Shellfish is fully cooked when internal temperature reaches 145°.***