Food Network and Martha Stewart both provide recipes for homemade bruschetta that include tomatoes, onions, garlic and olive oil. Both recipes suggest serving the bruschetta with a sliced and toasted baguette.
The Food Network recipe includes 3 small plum tomatoes, 20 fresh basil leaves, coarse salt and extra-virgin olive oil. Slice the plum tomatoes in half, and put them in a bowl. Thinly slice the basil, and add it to the tomatoes. Coat them with a small amount of extra-virgin olive oil and coarse salt for taste. At this point, 2 large cloves of sliced garlic can be added to the ingredients or on the toasted bread. The recipe yields 4 servings.
Martha Stewart's recipe requires 4 pounds of heirloom tomatoes cut into 1/2 inch pieces, 2/3 cup of extra-virgin olive oil, coarse salt and freshly ground pepper for additional taste. Combine the ingredients in a bowl. Cut baguette into slices, and grill the slices on each side. Finely chop 2 garlic cloves. After the baguette slices are toasted, spread the garlic on each slice. Spoon the tomato mixture on top of the garlic. Thinly slice 1 red onion, and add it on top of the tomato mixture. Tear apart 2 cups of fresh basil leaves, and place them on top of the onion. This recipe yields 24 servings.