Cook pasta according to package directions, omitting salt and fat. Drain; keep warm.
Heat oil in a large nonstick skillet over medium heat. Add pepper and garlic to skillet; cook 1 minute or until garlic is fragrant. Add tomatoes; cook 45 seconds or just until heated, stirring gently. Remove the skillet from heat; stir in lemon juice and salt. Combine the hot pasta, arugula, and warm tomato mixture in a large bowl, tossing to coat. Top with cheese and bacon.