Mofongo con Salsa de Tomate (Mashed Plantains with Tomato Sauce)

Ingredients

• Canola oil, for frying
• 5 plantains, peeled, cut into 1″ chunks, soaked in hot water
• 3⁄4 cup chicken stock
• 8 oz. bacon, cut into 1/4″ cubes
• 7 cloves garlic, minced
• 1⁄2 cup olive oil
• Kosher salt and freshly ground black pepper, to taste
• 1 small yellow onion, minced
• 1 (28-oz.) can whole, peeled tomatoes, drained and crushed
• Shredded iceberg lettuce and tomato wedges, to serve