Simple and bright, this is the kind of main that puts us in the mood for spring. If you’ve never thrown fresh lemons on the grill, try it: The slight edge of char intensifies their tartness, and they look gorgeous. The marinade is more of a wet rub since the chicken goes straight to the grill, though you could refrigerate up to a day ahead. This salad is endlessly adaptable for spring and summer vegetables: Try shaved carrot and summer squash ribbons, haricots verts, or even just a shower of fresh herbs.

Ingredients
2 medium lemons
1 1/2 tablespoons chopped fresh oregano
1 1/2 tablespoons canola oil
2 teaspoons minced garlic
4 (6-oz.) skinless, boneless chicken breasts Cooking spray
3/4 teaspoon kosher salt, divided
1/2 teaspoon freshly ground black pepper, divided
8 ounces thin asparagus
8 green onions, trimmed
2 tablespoons extra-virgin olive oil
1 1/2 tablespoons white wine vinegar
1 (5-oz.) pkg. arugula

How to Make It
Step 1
Grate lemon rinds to equal 2 teaspoons; halve lemons crosswise and reserve. Combine rind, oregano, canola oil, and garlic in a large bowl. Add chicken; toss to coat.

Step 2
Heat a grill pan over medium-high. Coat pan with cooking spray. Sprinkle chicken with 1/4 teaspoon salt and 1/4 teaspoon pepper. Add chicken to pan; cook 5 minutes on each side or until done. Add lemon halves to pan, cut sides down; cook 4 minutes. Remove chicken and lemons from pan. Cut chicken into slices.

Step 3
Coat asparagus and green onions with cooking spray; add to pan. Cook 3 to 4 minutes or until charred and tender, tuning occasionally. Cut asparagus and green onions into 2-inch pieces.

Step 4
Combine remaining 1/2 teaspoon salt, remaining 1/4 teaspoon pepper, olive oil, and vinegar in a large bowl. Add asparagus, green onions, and arugula; toss. Serve with chicken and lemon halves.