Cut parchment paper into 4 pieces measuring approximately 20 x 14 inches. On large work surface, lay parchment pieces out flat and place 1/4 of kale in center of each piece. Top with a portion of halibut, season with salt and pepper to taste, and arrange tomatoes around each piece of halibut. Divide and drizzle remaining chili oil and squeeze juice from remaining half of lemon over each piece of halibut. Finally, top each piece of halibut with 2 lemon half-moons. Seal packets by folding long edges of parchment toward center, rolling and crimping up edges.