3 Tbsp. extra-virgin olive oil, plus 1/4 cup for toasts
2 medium yellow onions, diced
6 cloves garlic, thinly sliced
1/2 tsp. dried red pepper flakes, or up to 1 tsp. for spicier broth
1 cup dry white wine, such as Sauvignon Blanc
1 can (15 oz.) Contadina® Tomato Sauce
2 cans (14.5 oz. each) Contadina® Diced Tomatoes, not drained
1 baguette (8 to 16 oz.) cut diagonally into 1/2-inch-thick slices about 6 inches long
1 large garlic clove, cut in half
4 lbs. fresh mussels, rinsed and scrubbed (discard any with cracked or broken shells)
1/2 cup plus 2 Tbsp. coarsely chopped fresh parsley
Lemon wedges, for serving
1 jalapeño or Fresno chile, thinly sliced (optional)