Step 1

Heat the grill on medium heat and spray the grates with oil.

Step 2

Mix oregano, sesame seeds, cumin, and red pepper flakes in a small bowl to combine; set spice mixture aside.

Step 3

Beginning and ending with salmon, thread salmon and folded lemon slices onto 8 pairs of parallel skewers to make 8 kebabs total.

Step 4

Spray the fish lightly with oil and season kosher salt and the reserved spice mixture.

Step 5

Grill the fish, turning occasionally, until fish is opaque throughout, about 8 to 10 minutes total.