Nuxt/examples/head-elements/nuxt.config.js

module.exports = {
  head: {
    titleTemplate: '%s - Nuxt.js',
    meta: [
      { charset: 'utf-8' },
      { name: 'viewport', content: 'width=device-width, initial-scale=1' },
      { hid: 'description', name: 'description', content: 'Meta description' }
    ]
  }
}