Incorporate clean lines and geometric shapes in your kitchen design to enhance the sleek and minimalist theme. Choose cabinets, countertops, and furniture with straight edges and sharp angles. Avoid ornate or intricate details that can clutter the space. Consider using geometric tiles for the backsplash or geometric patterns in textiles and accessories to add visual interest. The clean lines and geometric shapes will create a sense of order and simplicity, elevating the overall minimalist aesthetic.