Substitute:

• No apple? You can make your delicious granola with other fruits too. Try using fruits that hold their shapes when cooking such as pears, figs, or quince. Avoid juicy fruits such as berries or peaches. Another option would be to add citrus zest into your granola mixture. 
• Gluten free? You can swap the rolled oats for gluten-free oats. 
• No pecans? Use any nuts and seeds of your choice. Walnuts, pumpkin seeds, sunflower seeds, hazelnuts, flaked almonds, peanuts and pistachios are great examples. 
• No cinnamon? Try with ground ginger or ground allspice. Use half the quantity. 
• No salt? Try to use flaky sea salt, for a flavourful granola. If you only have the fine salt, no problem just add a little less. 
• No honey? You can substitute honey with maple syrup. 
• No olive oil? Try the same recipe with coconut oil instead. Make sure to melt the coconut oil before adding it to your dry granola mixture.