Smoked Mussel Ceviche Tostadas

Name: Smoked Mussel Ceviche Tostadas
Ingredients: 3 medium golden beets; 1 medium jicima, peeled and diced into 1/2-inch squares; 1 small red onion, peeled and diced finely; 2 to 3 jalepeno chilies, stemmed, seeded and finely diced; 12 ounces smoked mussels; 1/4 cup extra virgin olive oil; 1 bunch cilantro leaves, washed, fried and roughly chopped; 1/4 cup freshly squeezed orange juice; 1/4 cup freshly squeezed lime juice; 1 teaspoon salt; 1/2 teaspoon freshly ground black pepper; 6 to 10 crispy flat corn tortillas; 1 avocado, peeled and seeded, mashed