Key Takeaways McDonald's is expanding a beverage test across 500 U.S. restaurants to reignite 2026 momentum.The test is outperforming expectations with strong satisfaction, higher checks and added daypart occasions.Insights from CosMc's helped refine the lineup, supporting value, margins and smoother kitchen execution.McDonald’s Corporation (MCD) is sharpening its focus on beverages as a potential catalyst for a stronger U.S. performance in 2026. The category presents a compelling opportunity because bevera ...