Easy Slow Cooker Chicken Tacos

Ingredients (9)

• + 1 ½ (16 ounce) packages chicken breast tenderloins add to pantry
• + 1 (1 ounce) package taco seasoning add to pantry
• + 1 (16 ounce) container mango-peach salsa add to pantry
• + 1 teaspoon cayenne pepper, or to taste add to pantry
• + 1 teaspoon chili powder, or to taste add to pantry
• + 1 teaspoon garlic powder, or to taste add to pantry
• + salt to taste add to pantry
• ✓ 1 (20 ounce) can pineapple chunks, drained with juice reserved
• + 1 medium onion, sliced add to pantry