Toss tomatoes with olive oil and salt. Place on a baking sheet. Bake in the preheated oven for 45 - 60 minutes or until the tomatoes start to release their juices and soften. Remove from the oven and set aside until ready to use.
Turn on the oven broiler. Place baguette slices on a baking sheet and broil 30 seconds to 1 minute or just until slightly toasted. Rub the garlic clove on the toasted baguette slices.
Spread goat cheese onto the baguette slices. Top each crostini with a few roasted tomatoes. Sprinkle basil over the top. Serve.