Here's an easy appetizer you can put together quickly and if you're a little creative, I bet you can come up with many variations.
Just in case the first ingredient on the list is not descriptive enough, here's a picture.
1 (2 foot long) loaf skinny crusty bread, thinly sliced
1/3 cup olive oil
1 clove garlic, minced
1/4 teaspoon salt
1/4 teaspoon pepper
1/2 cup sliced green onions
5 to 7 Roma tomatoes, cut into about 36 slices (or however many slices you got from the bread)
1 1/2 cups (6 ounces) shredded mozzarella cheese
Place bread slices on aluminum foil lined baking sheet.
Bake at 400 degrees for 5 minutes or until lightly browned.
Meanwhile, combine olive oil and next 3 ingredients. Brush oil mixture on bread slices after the first 5 minutes of baking. Top each with green onions and a tomato slice. Sprinkle with cheese.
Bake at 400 degrees for another 5 to 7 minutes or until cheese melts.
Of course, I was just cooking for two and didn't use the entire 2 foot loaf. Adjust according to your needs.
I also cheated and used garlic flavored oil instead of mixing garlic into the olive oil.
Even if the bread is a little stale, the baking will give it a nice, light crispiness again.