Prepare ingredients and toast the bread. Slice the tomato 1/4-inch thick and pat lightly on paper towel to remove excess moisture — this prevents the toast from getting soggy. Toast the whole-grain slices to a deep golden-brown; a bit longer than pale means the bread will be crisp enough to hold moist toppings without collapsing.

If using, rub the warm toast with garlic. Halve the 1/2 garlic clove and rub the cut side across the hot toast (only two slices, so a half clove yields a whisper of garlic). This imparts subtle aromatic garlic without overpowering the delicate cottage cheese — it's a classic restaurant trick to layer flavor without adding effort.

Season the cottage cheese. In a small bowl stir together 3/4 cup cottage cheese with 1/4 teaspoon sea salt, 1/2 teaspoon freshly cracked black pepper (reserve a little for finishing), and the optional 1/2 teaspoon lemon zest and 1 tablespoon snipped chives or basil if using. Stirring charges the curds with seasoning so every bite is flavorful; lemon zest brightens the dairy, and herbs add freshness.

Assemble on the toast. Divide the seasoned cottage cheese between the two toasted slices and spread gently in an even layer. Arrange the tomato slices on top in a single layer so each bite gets both tomato and curd. Stacking tomatoes too high can make the toast slippery, so keep it balanced.

Finish with olive oil and cracked pepper. Drizzle the 1 tablespoon extra-virgin olive oil evenly across the two toasts (about 1/2 tablespoon per slice) to add silkiness and depth. Finish with another crack of black pepper and a light pinch of salt if needed. The final drizzle and pepper are the finishing details that bring the dish to a restaurant level.

Serve immediately. The contrast between warm, crisp toast and cool cottage cheese is best enjoyed right away. If making ahead, keep components separate and assemble just before serving to preserve texture.