Begin by slicing the baguette on the diagonal. Then, lay the slices in a single layer on a baking sheet. Brush them with olive oil and sprinkle with salt and pepper. Place the baking sheet on the top rack of your oven and broil for 4-5 minutes until the bread is golden brown. Set aside to cool.
In a small bowl, toss the sliced pears with the lemon juice to prevent browning.
To assemble, layer the ingredients onto the toast, beginning with a pear slice. Follow that with a few crumbles of blue cheese and a sprinkle of walnuts. Finally, drizzle with honey and top with fresh sage.