Turn the broiler on low.

Cut the bread slices into thirds and lay on a cookie sheet. Brush each slice of bread with olive oil. Set under the broiler on the middle rack of the oven for 10-15 minutes or until the bread is crisp and golden brown.

While the bread is toasting cut the tomatoes and avocados into small slices.

When the bread is out of the oven turn the oven over to 350 degrees and let preheat.

While the oven is preheating, layer each slice of bread with a piece of cheese, tomato and avocado. Season with salt and pepper to taste. Drizzle a bit of olive oil on the bread for extra flavor.

Bake for 10-15 minutes, until the cheese is melted and the tomato and avocado are heated through.