Butternut Squash and Black Bean Tostadas

Ingredients (10)

• + 1 medium butternut squash - peeled, seeded, and chopped into small cubes add to pantry
• + 1 tablespoon olive oil add to pantry
• + 4 cloves garlic, minced add to pantry
• + salt and ground black pepper to taste add to pantry
• + salt and ground black pepper to taste add to pantry
• + 2 (15 ounce) cans black beans, drained add to pantry
• ✓ 2 teaspoons ground cumin
• + 1 pound fresh spinach add to pantry
• ✓ 10 corn tortillas
• + 2 tablespoons chipotle-lime crema, or to taste add to pantry