Line an 8x8-inch baking pan with parchment and stir the oats, salt, and any dry mix-ins together in a large bowl.

Warm the almond butter, maple syrup, and coconut oil in a small saucepan over low heat for about 2 minutes until smooth. Remove from heat and stir in the vanilla.

Pour the wet mixture over the oats and fold everything together, then press the mixture firmly into the prepared pan using damp hands or a flat-bottomed glass.

Refrigerate the pan for at least 1 hour until firm, then lift out, slice into 8 bars, and serve.