Rinse 1 bunch kale cold water hands. Pat dry paper towels. Cutting board chef's knife strip ribs discard tough. Stack leaves chop 1-inch ribbons loose. Ready 4 cups packed.
All-Clad 12-inch skillet medium-high heat 2 tbsp olive oil shimmer. Add 3 sliced garlic ¼ tsp red pepper flakes tongs stir 30 seconds golden fragrant no brown.
Dump chopped kale skillet pile. Sprinkle ½ tsp salt. Tongs toss constant 4 minutes wilt bright green tender volume halves. Stems chew soft.
Kill heat. Squeeze 1 tbsp lemon juice direct skillet. Toss tongs 20 seconds bright shine. Plate hot scoop.